久久久久久人妻一区二区三区-激情久久AV一区AV二区AV三区-久久久久久久极品内射-精品少妇人妻AV一区二区

萬能百科  > 職業(yè)技能鑒定?  > 

High firing pressures and low exhaust temperature in a diesel engine may resultf

2021-05-07   

High firing pressures and low exhaust temperature in a diesel engine may resultfrom( ).

A.decreased piston to cylinder head clearance

B.increased exhaust system back pressure

C.early fuel injection timing

D.low scavenge air temperature

詞條內(nèi)容僅供參考,如果您需要解決具體問題
(尤其在法律、醫(yī)學(xué)等領(lǐng)域),建議您咨詢相關(guān)領(lǐng)域?qū)I(yè)人士。

標(biāo)簽