所以，通风管道质量是很重要的。 。

Therefore, ventilation pipe quality is very important.

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通风管道是通风系统的重要组成部分。

Ventilation pipe is vital part of ventilation system.

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向主动轴管上连接通风管。

Connect the vent hose to the axle shaft tube.

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或者，至少，可以再买一圈采暖通风管。

Or, at least, to buy another roll of duct tape.

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请装上通风管道。

Please fit the ventilation ducts.

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钻孔机在一个密封的通风管道前受阻，而这个管道离矿工们还很远。

The drill may have hit a sealed shaft, away from the miners.

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如果再建些伸出海面的高大的烟囱状通风管，隧道就具备了良好的通风条件。

The tunnel would be well-ventilated if tall chimneys were built above sea level.

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如果再建些伸出海面的高大的烟囱状通风管，隧道就具备了良好的通风条件。

The tunnel would be well-ventilated if tall chimneys were built above sea level.

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