crankcase ventilation的用法和樣例：
例句
- The crankcase ventilation system carries fresh air through the crankcase.
曲軸箱通風(fēng)系統要攜帶新鮮的空氣通過(guò)曲軸箱。 - The crankcaseventilation system, using a road-draft tube, vented the crankcase vapors and blow-by gas into the atmosphere.
采用行車(chē)抽吸管的曲軸箱通風(fēng)系統，給曲軸箱內的蒸氣和竄漏氣體排入大氣提供了出口。
