Oil may be forced out through the timing cover and rear-main bearing oil seals . 机油会从正时齿轮盖和后主轴承油封处压出。
The gas contains blow-by, sludge, acids, oil, and other contaminant . 这些气体包括窜缸气体，沉积物，酸，机油和其它杂质的气体。
The thin frigid air swept cigarette smoke and stale machine smells from the heated cockpit . 稀薄而凛到的空气把燠热的座舱里的香烟烟雾和隔宿的机油气味吹掉了。
In the engine, oil is supplied to crankshaft and camshaft journals rotating in their supporting bearings . 在发动机里，机油被供应到旋转在其支承轴内的曲轴和凸轮轴轴颈上。
The early system were known as open systems, because the oil-filler cap was open, or vented to the atmosphere . 早期的控制系统，就是人们所知道的“开式”系统，因为它的加机油管盖是开式的，或者说因其与大气连通。
Guide for characterizing hydrocarbon lubricant base oils 氢类润滑剂机油特性指南
Specifications for powder metallurgy oil pump gears 粉末冶金机油泵齿轮.技术条件
That collapsed on my head while l was changing the oil 当我上机油时砸到我头上
That collapsed on my head while l was changing the oil 当我上机油时砸到我头上
