这些都是空气的通道。
The air passage is called the air bleed.
空气通道叫通气孔。
It is used to put through cut off the air passage in vacuum pipeline.
阀门用于接通或切断真空管路中的气流。
It is used to put through or cut off the air passage in vacuum pipeline.
阀门用于接通或者堵截真空管途中的气流。
It is used to put through or cut off the air passage in vacuum pipeline.
CC Q型气动超高真空插板阀用于接通或切断真空管路中的气流。
Engine, thermostat, radiator, pump and the air passage are included in the model.
该系统主要由发动机、节温器、散热器、水泵以及空气冷却系统组成。
Belling out the end of the tube will permit a freer passage of air.
把管端做成钟口状可使气流更畅通。
The reserved water in the dump bucket obstructs return air in an excrement passage.
翻斗里的存水隔断了粪便通道的回气。
Guarantee the engine air cylinder, spark plug and oil passage are cleaned.
保证发动机气缸，火花塞和油路清洁。
Guarantee the engine air cylinder, spark plug and oil passage are cleaned.
保证发动机气缸，火花塞和油路清洁。
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