Ngokubhekisele kulwazi olusisiseko lolwazi olusisiseko lomvelisi oqhelekileyo, injini yedizili kwaye iseti, siyikhumbule ngendlela yombuzo kwaye siphendule kwiminyaka embalwa edlulileyo, kwaye ngoku iphindaphindwa isicelo sabasebenzisi abanye abasebenzisi. Njengoko itekhnoloji nganye ihlaziyiwe kwaye yaphuhliswa, le mxholo ilandelayo ilungiselelwe:
1. Zeziphi iinkqubo ezintandathu ezibandakanyiwe kwizixhobo ezisisiseko zoGeneratori weDiesel
A: (1) Inkqubo ye-pible ye-upeb; (2) Inkqubo yepetroli; (3) Inkqubo yokulawula kunye nokukhusela; (4) Inkqubo yokupholisa kunye nenkqubo ye-radiation; (5) Inkqubo yokuphelisa; (6) Inkqubo yokuqalisa;
2. Kutheni sicebisa i-heel ecetyiswa ziinkampani zobungcali kumsebenzi wethu wokuthengisa?
A: I-Peel ligazi lenjini. Nje ukuba umthengi asebenzise ipetroli engasebenziyo, iingozi ezibi ezinjengokulala, ukusika izinyo le-gear, i-cheet yokwahlukana kunye nokuqhekeka kuyakwenzeka kwi-injini de kube njalo. Ukukhetha okukhethiweyo kwamafutha kunye nokuthatha amanyathelo okusebenzisa iindleko kucacisiwe kumanqaku afanelekileyo kolu luhlu.
3. Kutheni le nto umatshini omtsha kufuneka atshintshe ipetroli kunye ne-filter yepetroli emva kwexesha?
A: Ngexesha lokuqhuba, ukungcola ngefake ngokungathandabuzekiyo kwipani ye-Wiel, ebangela ukonakala komzimba okanye iikhemikhali zepeyinti yepetroli kunye ne-filter. Inkonzo yabathengi bentengiso yentengiso kunye nenkqubo yezivumelwano zeseti ezithengiswa nguWuhan Jili, siya kuba nabasebenzi abaziingcali ukuba benze ulondolozo olufanelekileyo.
4. Kutheni sifuna ukuba uMthengi enze i-pipe i-piped i-5-10 degrees xa efaka iseti?
A: Lingaphezulu kwamanzi emvula ukuba angangeni kumbhobho womsi, okhokelela kwiingozi ezinkulu.
I-5. Impompo ye-Fuel i-pumputer kunye ne-bill yokuphelisa ifakwe kwinjini yedizili ejini. Yintoni umsebenzi wabo?
A: Ukususa umoya kumgca wepetroli ngaphambi kokuqala.
I-6.
A: Incwadana yemigaqo, ukuziqesha, ukuziqesha kunye neKhabhinethi yokuguqula amandla ezenzekelayo, ekude kathathu (ulawulo olukude, umlinganiso okude, ukubeka esweni kude).
7. Kutheni le nto impatho yokuphuma kwemveliso yemveliso 400v endaweni ye-380v?
A: Ngenxa yokuba kukho ilahleko yevolthi yehla emgceni emva kokuba iphuma.
8. Kutheni kufuna ukuba indawo yokusetyenziswa komjelo weDiesel usetwa yi-moya-igudileyo?
A: Imveliso ye-injini yedizili ichaphazeleka ngokuthe ngqo kubungakanani kunye nomgangatho womoya ophethwe ngumoya. Ukongeza, umvelisi kufuneka abe nomoya owaneleyo wokupholisa. Ke ngoko, ukusetyenziswa kwendawo kufuneka ibe yi-moya-igudileyo.
9. Kutheni le nto kungasentla iiseti ezintathu kungamele kuqine kakhulu ngezixhobo xa kufakwa isihluzo se-pieli, isahlulo samanzi nge-dielish kunye ne-piel-amanzi, kodwa siphephe kuphela ukuvuza ipetroli?
A: Kuba ukuba iringi yokutywina ikhutshiwe ngokuqinileyo, iya kwandisa phantsi kwesenzo seebhulukhwe ze-teub kunye nobushushu bomzimba bunyuka, zikhokelela kuxinzelelo olukhulu. Umonakalo kwizindlu zokucoca okanye indawo yokwahlulahlula ngokwahluka. Yintoni eyona nto ibaluleke kakhulu ngumonakalo wedysprosium engenako ukulungiswa.
10. Ungahlula-hlula njani phakathi kwegunya le-gunya kunye nenjini yedizili yasekhaya?
A: Kuyimfuneko ukujonga ukuba ngaba kukho izatifikethi zomvelisi kunye nezatifikethi zemveliso, ezo "zatifikethi zesazisi" somenzi we-injini yedizili. Jonga amanani amathathu aphambili kwiSitifiketi 1) inombolo yekhephu;
2) Inombolo ye-airframe I-3) igama iplate yepoti yepetroli. Amanani amathathu amakhulu kufuneka ajongwe ngokuchanekileyo ngokuchasene neenombolo zedizili. Ukuba nawaphi na amathandabuzo afunyenwe, la manani amathathu anokuxelwa kuMvelisi ukuze aqinisekise.
11. Emva kombane kuthatha ngaphezulu kwe-dielineteetha iseti, ngawaphi amanqaku amathathu kufuneka ahlolwe kuqala?
A: 1) Qinisekisa amandla okwenyani ofanelekileyo weseti. Emva koko chaza amandla oqoqosho kunye namandla obugcino. Indlela yokuqinisekisa amandla amnandi e-seti yeseti kukuphindaphinda i-12 yeeyure ezilinganiselweyo zenjini yediza yi-0.9 ukufumana idatha (kW). Ukuba amandla anqabileyo evelisi ingaphantsi okanye alingane nale datha, emva koko amandla anqabileyo evelisi isetiwe njengamandla okwenyani ofanelekileyo weseti. Ukuba amandla anqabileyo emvelisi mkhulu kunedatha, le datha kufuneka isetyenziswe njengamandla okwenyani etikiweyo.
2) Qinisekisa imisebenzi yezikhuselo yeseti. 3) Qinisekisa ukuba ngaba i-gering yamandla yeseti ifanelekile, nokuba ngaba umhlaba wokhuselo uyanokuthenjwa kwaye nokuba umthwalo wesithathu ulungelelene.
I-12. I-Elevator enye ye-Elevator i-22kw. Nguwuphi umvelisi ofanelekileyo?
A: 22 * 7 = I-154kw (inyusi ilayisha ngokuthe ngqo i-Starter, indawo yokuqaliswa kwebala le-Treatup idla ngokuphindaphindiweyo kangangezihlandlo ezisi-7 zekamva).
Kuphela kuxa inyusi inokuthi ihambe ngesantya esingapheliyo). (okt ubuncinci i-154kw isetiwe)
13.
A: p ilungile = 3/4 * p yokulinganisa
14. Ngaba urhulumente uyacacisa ukuba amandla ee-injini yeseti ye-General Generator inkulu kakhulu kunelo venetoratori?
A: 10.
15. Ungaguqula njani amandla ee-injini olwenziwe kwi-generator ethile kwi-kW?
A: 1 hp = 0.735 kW kunye ne-1 kw = 1.36 hp.
16 ..
A: I = p / (3 UCOS) φ) φ)
Ifomula elula yile: i (a) = I-ARTATIONT YOLWAZI (KW) * 1.8
17. Ulwalamano phakathi kwamandla abonakalayo, amandla asebenzayo, olwenzileyo, amandla amakhulu kunye namandla obukhulu kunye nezoqoqosho?
A: 1) Ukujonga iseti yamandla abonakalayo njenge-KVA, i-China isetyenziselwa ukubonisa amandla abaguquli kunye nee-UPS.
2) Amandla asebenzayo angama-0.8 ngamandla abonakalayo kwiiseti ze-kw. Kulisiko ngenxa yezixhobo zokuvelisa amandla kunye nezixhobo zombane eTshayina.
3) Amandla anqabileyo e-Dieline Settor iseti ngamandla anokuqhuba ngokuqhubekayo iiyure ezili-12.
I-4) Amandla aphezulu angama-1.1 amaxesha amandla aqingqiweyo, kodwa iyure enye kuphela ivunyelwe ukuba isetyenziswe kwiiyure ezili-12.
I-5) Amandla oqoqosho ngamaxesha angama-0.75 amaXesha aMandla, ongumandla okuphumeza kwe-Diesel Generator i-Dienerator inokuthi isebenze ixesha elide ngaphandle kokusikelwa umda wexesha. Kula mandla, uqoqosho lwamafutha kunye nexabiso lokuphumelela liphantsi.
18. Kutheni le nto i-Dienerator ye-dizeli ivunyelwe ukuba isebenze ixesha elide phantsi kwe-50% yamandla anqabileyo?
I-A: Ukunyusa ukusetyenziswa kwamafutha, okuqhuba ngokulula kwi-injini yedizili, ukunyusa umgangatho wokusilela kunye nomjikelo we-ofisi ye-overthaul.
19. Ngaba olona nzi lokuphuma lomvelisi lusebenza ngokommiselo wamandla okanye umlo?
A: I-AMMETETT ireferensi kuphela.
20. Ukuhamba rhoqo kunye ne-voltage ye-generator iseti ayizinzile. Ingxaki kukuba injini okanye umvelisi?
A: Yinjini.
21. Ukuzinza rhoqo kwe-generator isetwa kunye nokungazinzi kwe-voltage yingxaki ye-injini okanye umvelisi?
A: Ngumvelisi.
22. Kwenzeka ntoni ekuphulukaneni kwentswelo yomveleli wemveliso kunye nendlela yokujongana nayo?
A: I-generator ayisetyenziswanga ixesha elide, ekhokelela ekuphulukaneni kwe-Magnet ye-Supernet equlethwe kwi-iron core ngaphambi kokuba ishiye umzi-mveliso. I-CUCUWE YAYIYENZA IBANGO LAYIYO I-Magnetic ntsimi kufanele ukuba ibe nayo. Ngeli xesha, i-injini isebenza ngokwesiqhelo kodwa ayinakuvelisa umbane. Le phenomenon intsha. Okanye ixesha elide elingasetyenziswanga leeseti ezingaphezulu.
Indlela yokuqhubela phambili: 1) Tsala iqhosha lomnxibelelanisi kanye ngeqhosha lomnxibelelanisi, 2) lihlawule ngebhetri, 3) Thatha umthwalo we-bulb kwaye ubaleke ngesantya kwimizuzwana eliqela.
23. Emva kwethuba, i-generator iseti ifumanisa ukuba yonke enye into eqhelekileyo kodwa amandla ayancipha. Sisiphi esona sizathu siphambili?
A: a. Isihluzi somoya simdaka kakhulu ukuba sincancise umoya owoneleyo. Ngeli xesha, isihluzo somoya kufuneka sicocwe okanye sitshintshwe.
B. Isihluzi se-pill simdaka kakhulu kwaye isixa sepetroli esithunyeneyo ayonelanga. Kufuneka itshintshwe okanye icocwe. C. IXESHA LOKUGCINA alichanekanga kwaye kufuneka lilungiswe.
24. Xa kuseta uluhlu lwemveliso, i-voltage kunye ne-frequency izinzile, kodwa okwangoku ayizinzanga. Yintoni ingxaki?
A: Ingxaki kukuba umthwalo womthengi awuzinzanga kwaye umgangatho womvelisi ulunge ngokupheleleyo.
25. Ukungazinzi rhoqo kwemveliso ebekiweyo. Zeziphi ezona ngxaki ziphambili?
A: Eyona ngxaki iphambili kwisantya esingazinzanga somvelisi.
26. Ngawaphi amanqaku abaluleke kakhulu ekufuneka ithathelwe ingqalelo ekusebenziseni umvelisi wedizili
A: 1) Amanzi kwitanki kufuneka anele kwaye asebenze ngaphakathi kuluhlu lwamaqondo obushushu avumelekileyo.
2) Ukutsala ipetroli kufuneka kube sendaweni, kodwa hayi kakhulu, kwaye usebenze ngaphakathi kodidi oluvumelekileyo. I-3) I-frequency izinzile malunga ne-50hz kwaye i-voltage iyazinza malunga ne-400v. I-4) Inqanaba lesithathu langoku liphakathi kodidi olujongwayo.
27. Mangaphi amalungu e-dieline genererator kufuneka atshintshwe okanye acocwe rhoqo?
I: I-Diel fil fiel, i-filter filter, filitha ye-oyile, isihluzo somoya. (Iiseti zomntu ngamnye nazo zineefiltha zamanzi)
28. Zeziphi ezona zibonelelo ziphambili zomvelisi wegazi?
A: (1) Susa ukugcinwa kwebrashi yekharbon; (2) ukuphazamiseka kwerediyo; (3) Ukucutha ukuphulukana nempazamo.
29. Yintoni inqanaba lokufakwa ngokubanzi kwezivelisi zasekhaya?
A: Iklasi yoomatshini basekhaya b; Oomatshini be-Marathon Brand, oomatshini be-lillisngenma Brand kunye noMatshini Bokwenza i-Stanford Brands iKlasi h.
30. Yeyiphi i-petroli ye-petroli ifuna ipetroli kunye nepetroli?
A: Injini ye-petroke ezimbini.
31. Ithini imiqathango yokusetyenziswa kwe-generator ezimbini kwi-falllel? Sisiphi isixhobo esisetyenziselwa ukugqiba kunye nomsebenzi womatshini?
A: Imeko yokusebenza ngokuhambelana kukuba i-voltane yangoku, rhoqo kunye nesigaba soomatshini bobabini siyafana. Ihlala yaziwa ngokuba "zithathu ngaxeshanye". Sebenzisa isixhobo esikhethekileyo somatshini-pharal IKhabhinethi ngokupheleleyo ngokupheleleyo iyacetyiswa. Zama ukungayivuyi ngesandla. Kuba impumelelo okanye ukusilela komthetho wokudityaniswa kwezandla kuxhomekeke kumava omntu. Ngaphezulu kweminyaka engama-20 yamava kumsebenzi wombane wombane, umbhali uthi ngenkalipho inkalipho ethembekileyo yokufaka i-generaters yencwadana yemisebenzi ye-Dieradia ukuya kwi-Counter Systeres, kuba amanqanaba okhuselo ahluke ngokupheleleyo.
32. Yintoni eyona nto iphambili kwi-verator yesigaba amathathu? Ngaba ukongezwa komntu ongumgubo wokuphucula into yamandla?
A: I-APRORY STAT ngu-0.8. Hayi, kuba intlawulo kunye nokukhutshwa kwamandla kuya kubangela ukuba amandla amancinci ombane. Kwaye usete i-oscicication.
33. Kutheni sicela abathengi bethu ukuba baqinise abafowunelwa bombane emva ko-200 eeyure zomsebenzi?
A: Umvelisi we-dieliset set ngumsebenzi wokuhambisa. Kwaye uninzi lweeseti ezithengisiweyo okanye ezihlanganiseneyo ngaphakathi kufuneka zisebenzise amandongomane amabini. I-starket yentwasahlobo ayinamsebenzi. Nje ukuba abafakeli bombane bakhululekile, ukunganyangeki okukhulu koqhagamshelwano kuya kwenzeka, okuya kubangela ukuba iseti iqhube ngokwasemzimbeni.
34. Kutheni le nto igumbi lokuvelisa lingacoceki kwaye lingaphantsi kwesanti yokudada?
A: Ukuba i-Diesel iNvula iNgiles umoya ongcolileyo, iya kunciphisa amandla ayo. Ukuba umvelisi uncanca kwintlabathi kunye nezinye izinto zokungcola, ukufakelwa phakathi kwesitetori kunye nezithuba zeRotor ziya konakala, okanye zitshiswe.
35 .. Kutheni kungeyona nto icetyiswa ngokubanzi kubasebenzisi ukuba basebenzise i-hlaltings
A: 1) Umsebenzi wokuzilawula womvelisi omtsha wokufana wophuculwe kakhulu;
2) Ifunyanwa ekuziqhelanise nenqanaba lokungaphumeleli kokungathathi hlangothi liphezulu.
I-3) Imfuneko yokufumana umgangatho uphakamileyo kwaye ayinakufikelelwa ngabasebenzisi abaqhelekileyo. Umhlaba ongakhuselekanga ulunge ngakumbi kunokungafihli.
4) sets grounded at the neutral point have the opportsety to cover up leakage faults and grounding errors of loads which cannot be exposed under the condition of large current supply at municipal power stations.
36. Zeziphi iingxaki ezifanele ziqwalaselwe xa usebenzisa iseti kunye nendawo engathathi cala kwezopolitiko?
A: I-Line 0 inokuthi iphile kuba i-voltage ye-canocire phakathi kwentambo yomlilo kunye nendawo engathathi hlangolo ayinakupheliswa. Abanini zithuthi kufuneka bajonge umgca 0 njengoko baphila. Ayinakusingathwa ngokwemikhwa yombane wentengiso.
37. Ungadibana njani namandla omjelo we-dielish ukuqinisekisa ukukhutshwa kwezinto ezikhoyo?
A: 1) I-UPS imelwa ngamandla abonakalayo i-KVA, ephinda iphindaphindwe ngu-0.8 kwaye iguqulwe ibe yi-KW iyahambelana negunya elisebenzayo lomvelisi.
2) Ukuba kusetyenziswa umnini jikani jikelele, amandla asebenzayo eendawo eziphindaphindwayo aphindwe ngo-2 ukumisela amandla omvelisi owabelweyo, okt amandla omvelisi aphindwe kabini kwe-ups.
3) Ukuba i-PMG (i-venete ye-PMG) isetyenziswa, ke amandla ee-UPS iphindaphindwe ngu-1.2 ukumisela amandla omvelisi, okt amandla omvelisi ngu-1.2 amaxesha anyukayo.
38. Ngaba izinto ze-elektroniki okanye zombane zikhe zaphawula i-500v voltage isetyenziswe kwiKhabhinethi yokuLawula iDieneli?
A: Hayi kuba i-40000 voltage iboniswe kwi-Dienerator iseti ye-voltage esebenzayo. I-voltage ye-Peak yi-1.414 amaxesha i-voltage efanelekileyo. Oko kukuthi, i-voltage ye-peak yoGenerali yeDieli yi-UUX = 566/55V.
39. Ngaba zonke iiverakhi zedizine zizixhobo zokuzikhusela?
A: Hayi. Kukho abanye ngaphandle kwemarike namhlanje nakumaqela afanayo. Xa uthenga iseti, umsebenzisi kufuneka ayenze icace kuye. Ibhaliwe kakuhle kakhulu njengesiqhotyoshelweyo kwisivumelwano. Ngokubanzi, oomatshini bexabiso eliphantsi abanalo umsebenzi wokuzikhusela.
40. Zithini izibonelelo zabathengi ezithenga iikhabhathi zokuziqalisa kodwa zingazithengi?
A: 1) Nje ukuba ukunqongophala kwamandla kwenzeka kwinethiwekhi yeSixeko, iseti iya kuqala ngokuzenzekelayo ixesha lokukhawulezisa ixesha lokuhambisa amandla encwadi;
2) Ukuba umgca wokukhanyisa uxhunyiwe ngaphambili kweSwitch lomoya, inokuqinisekisa ukuba ukukhanya kwigumbi lekhompyuter akuchaphazeli ukusilela kombane, ukuze kube lula ukusebenza kwabaqhubi.
41. Ithetha ntoni isimboli jikelele GF?
I-A: imele iintsingiselo ezimbini: a) Ukuseta i-frequety generator ilungele amandla e-China Jikelele ye-50hz. B) Iiseti zemveliso zasekhaya.
42. Ngaba umthwalo ophathwe ngumvelisi kufuneka ugcine ulungelelwaniso lwesiseko senqanaba lesithathu?
A: Ewe. Ukuphambuka okukhulu akufuneki kube ngaphezulu kwe-25%. Ukusebenza kwesigaba sokusebenza akuvumelekanga ngokungqongqo.
43. Yeyiphi imivimbo emine ethetha i-injini ye-injini yedizine ezine?
A: Ukuphefumla, uxinzelelo, umsebenzi kunye nokuphelisa.
44. Nguwuphi umahluko omkhulu phakathi kwenjini yedizili kunye nenjini yepetrol?
A: 1) Ingcinezelo kwi-cylinder yahlukile. Iinjini zeDieseli icela umoya ngexesha lesigaba sokuzihlaziya; I-injini ye-petroli icinezela umxube we-petroli kunye nomoya ngexesha lesigaba sokubetha koxinzelelo.
2) Iindlela ezahlukeneyo zokuhleba. Iinjini zeDiesel Porntaneally ngokuzenzekelayo zigxeka ngokutshiza i-dielised ye-Atomild ye-Atomild i-Geeses igesi. Iinjini ze-petrol zigcwele ziiplagi ze-spark.
45. Ithetha ukuthini "iivoti ezimbini, iinkqubo ezintathu" zithetha ngendlela yamandla?
A: Amatikiti amabini abhekisa kwitikiti lokusebenza kunye netikiti lokusebenza. Nawuphi na umsebenzi okanye umsebenzi owenziwe kwizixhobo zombane. Umsebenzi kunye namatikiti okusebenza akhutshwe ngumntu ophetheyo emsebenzini makaqokelelwe kuqala. Amaqela kufuneka anyanzelise ivoti. Iinkqubo ezintathu zibhekisa kwinkqubo yokutshintsha, inkqubo yokuhlola iParol kunye neNkqubo yokuTshintsha kweMisebenzi.
46. Yintoni le ibizwa ngokuba yinkqubo ye-Wire ye-Wire yeWire?
A: Kukho imigca emi-4 ephumayo ye-genetor iseti, yeyiphi imigca yomlilo kunye ne-1 ngumgca we-zero. I-voltage phakathi kwemigca yi-380v. Umgama phakathi komgca womlilo kunye nomgca we-zero ngu-220 V.
47. Ithini malunga nesekethe yesithili amathathu? Zithini iziphumo?
A: Ngaphandle kokuthintela phakathi kwemigca, isiphaluka esifutshane sesekethe sisiphaluka esithathu sesekethe. Imiphumo emiyo, kwaye imiphumo emibi inokukhokelela kwintshabalalo kunye nokufa.
48. Luyintoni obizwa ngokuba luncedo lwamandla ngasemva? Zithini iziphumo ezimbini ezibi?
A: Ukuhanjiswa kwamandla kwi-generator yokuzinika inethiwekhi yeSixeko kubizwa ngokuba kukunikezelwa kwamandla okubuyela umva. Zimbini iziphumo ezibi: a)
Akukho mqondo wamandla owenzeka kwinethiwekhi yeSixeko, kunye nokubonelelwa kwaMandla kwinethiwekhi yeSixeko kunye nokunikezelwa kwamandla ekuzenzelweni kwemveliso akuhambelani, kuya kutshabalalisa iiseti. Ukuba umthamo womvelisi ozinikeleyo umkhulu, inethiwekhi yesixeko iya kuphinda i-oscillate. B)
Igridi yamandla kaMasipala inqunyulwe kwaye iphantsi kolondolozo. Abavelisi bayo babonelela ngamandla. Uya kubangela amandla abo banika isebe abasebenzi abondlo kwi-elektrocute kwaye bafe.
49. Kutheni le nto i-Debugger ijonge ukuba ngaba zonke ii-bolts zokulungisa zikwimeko elungileyo ngaphambi kokuba zilungiswe? Ngaba yonke imigca yendawo yendawo?
A: emva kokuhamba komgama omde, ngamanye amaxesha akunakuthintelwa kwiseti yokukhulula okanye ukulahla iibhotolo kunye nonxibelelwano lomgca. Ukukhanya kwengqondo, kunzima komonakalo kumatshini.
I-50. Leliphi inqanaba lamandla ombane? Zithini iimpawu ze-AC?
A: Amandla ombane akwabantu abakwinqanaba lesibini. I-AC iguqulwa ukusuka kumandla oomatshini kunye ne-DC iguqulwa kumandla ekhemikhali. I-AC ibonakaliswa kukungakwazi ukugcina. Ngoku ifunyenwe ukuba isetyenziswe.
51. Yeyiphi imeko enokuhlangana nemveliso ngaphambi kokuvala umbane?
A: Iseti yokupholisa amanzi kunye nobushushu bamanzi bufikelela kwi-56 degrees Celsius. Iseti epholileyo epholileyo kwaye umzimba ushushu kancinci. I-Voltage Reagest ayiqhelekanga akukho mthwalo. uxinzelelo lwe-oli luqhelekile. Kuphela kuxa ivuliwe amandla.
52. Luyintoni ukulandelelana kwemithwalo emva kombane?
A: Imithwalo iqhutywa ukusuka kumncinci.
I-53. Yintoni ukulandelelana okungafundiyo ngaphambi kokuvalwa?
A: Imithwalo ayilayishwanga incinci ukuya kumkhulu kwaye ivaliwe emva koko.
54. Kutheni singakwazi ukucima umthwalo?
A: Ukuvalwa komthwalo ngumthwalo ongxamisekileyo.
I-Post Ixesha: Aug-30 ukuya ku-919
