air pit的意思|air pit的解释-里氏词典

[机] 通风坑

In such cases, provision should be made to always vent above flood level or for a pit drain to insure an adequate air gap below the relief port.
如果放置在坑内，则应该采取措施使得排放总是在地面上，或对于坑内排放，要确保在安全阀下方配置一个适当的气隙。
Rev.9:2 And he opened the pit of the abyss, and smoke went up out of the pit like the smoke of a great furnace; and the sun and the air were darkened by the smoke of th
启九2他开了无底坑，便有烟从坑里往上冒，好像大火炉的烟，日头和天空都因这坑的烟昏暗了。
The situations of the underground air duct work of central air shaft are introduced and according to the construction method and scheme selection in foundation pit supp
介绍了中央风井扇风机房风道地下部分的施工概况,对特殊条件下(风井正常运转)井架基础加固、坑支护方案的选择及施工方法作了阐述。

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