| 释义 |
positive ventilation
基本例句
强制通风,压力通风
What's the requirement for the forced ventilation system for crankcase?发动机曲轴箱强制通风的要求？
All automobile engines now built are equipped with the positive-crankcase ventilation system of crankcase emission control.所有现代制造的汽车发动机，都需要装备控制曲轴箱有害污染的曲轴箱强制通风系统。 |