查询词典 air drain

When installing a drain line, an air gap is necessary.

当安装排泄管道时，有必要安装一个气隙。

NOTE: DO NOT reduce the size of the drain line from the air gap fitting.

注意：不要缩小从气隙接出的排放管线的口径。

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They make more and more noises and drain more and more poisonous gas and polute our air.

他们制造着越来越吵的噪音，排放着越来越多的毒气。

Washing the water meter, after the cock drain water, close cock, see if the water level back to normal, if not, examine the system and check cock if it was air-logged.

冲洗水位计，并观察考克排水后，关闭考克后，水位能否恢复正常。如有异常现象，立即检查系统及考克有否堵塞。

In such cases, provision should be made to always vent above flood level or for a pit drain to ensure an adequate air gap below the relief port.

如果要在坑内更换，则应该采取措施保证排放总是在地面上。或者，对于坑内排放，确保在安全阀下方配置适当的气隙。

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When installing a drain line, use Series 909 air gaps on Model 909 backflow preventers.

在安装排泄管线时，在型号909防回流阀上采用系列909气隙。

C During the process of gas leakage test, emphasis shall be put on stuffing box of valve, flange or screw connection, air relief valve, drain valve, etc..

c 泄漏性试验的检查重点应是阀门填料函、法兰或螺纹连接处、放空阀、排气阀、排水阀等

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

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