The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to __..

职业资格 公共英语 已帮助 人

A.assist in a quick cutoff of fuel injection

B.allow oil backflow from the injector to the helix

C.reduce fuel oil pressure between injection strokes

D.meter the quantity of fuel delivered

请帮忙给出正确答案和分析,谢谢!

热搜:物联网英文为internet of things