A.3.8-4mm B.2.4-3mm C.6.0-6.5mm D.7.0-7.5mm
A.補(bǔ)償活塞上下竄動(dòng) B.動(dòng)力活塞上下竄動(dòng) C.補(bǔ)償針閥開(kāi)度太大 D.補(bǔ)償針閥開(kāi)度太小
A.180r/min B.360r/min C.500r/min D.720r/min