The fresh-air inlet was usually the crankcase breather cap.
新鲜空气进口一般是曲轴箱通气盖。
When the hood was up and the engine idling, crankcass vapors could often be seen escaping from the open breather cap.
当发动机盖打开并且发动机怠速运转时，我们常常可以看见从开式通气盖漏出的曲轴箱蒸气。
The crankcase ventilation system carries fresh air through the crankcase.
曲轴箱通风系统要携带新鲜的空气通过曲轴箱。
A threaded-on, pressure/vent cap mounted to the coolant tank
安装在冷却剂箱上的螺纹固定的压力/排气盖
air is drawn in through reeds by suction bellows.
空气通过簧片引入吸气风箱。
Turn the cap only to the first stop to permit any pressure in the system to be released through the overflow tube. Then turn the cap further to remove it
稍微转动一下水箱盖,使系统内的压力通过溢流管释放掉,然后继续转动水箱盖直至卸掉
Peter nailed the cover onto the box.
彼得把箱盖钉在木箱上。
air is forced through free reeds by bellows.
通过风箱空气被强迫经过自由簧片。
Design of a Ventilated Oil Steam Semiconductor Condenser for a Fuel Tank
油箱油蒸汽半导体冷凝通气器的设计
To avoid electrical shock hazards, neither open the cover of the electrical box for the motor nor touch the components mounted inside the electrical box.
为了防止发生触电事故，请不要在打开电源的状态下，打开电气箱盖以 及触摸电气箱内的零件。
"The cylinder head is usually cast in one piece from iron, from iron alloyed with other metals, or from aluminum alloy."
气缸盖通常由铁、铁合金或铝合金铸成。
to nail a lid on a box
把箱盖钉牢（给箱子钉上盖子）
You close the bin, sit down, fasten your seatbelt and take a deep breath.
然后，您合上箱盖，坐定，系紧安全带，这才深深地舒了口气。
fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark.
插入内燃机气缸盖通过电火花点燃气体。
circulate hot air by convection, as of certain ovens.
使热空气通过对流来循环，就像一个烤箱。
The crankcaseventilation system, using a road-draft tube, vented the crankcase vapors and blow-by gas into the atmosphere.
采用行车抽吸管的曲轴箱通风系统，给曲轴箱内的蒸气和窜漏气体排入大气提供了出口。
An opening or orifice, as in a bone or in the covering of the ovule of a plant.
孔如骨头或食物的覆盖膜上的小口或通气口
The burglar had prized open the lid of the chest.
窃贼撬开了箱子的盖子。