A unique air vent system which helps prevent nipple collapse.

奇特的导气系统避免奶嘴塌陷。

The vent system composed of vent groove, vent plug and clearance of ejector pin can fit the need of venting.

采用分型面排气槽、顶杆间隙排气与排气塞排气相结合的排气系统设计能够很好地满足模具排气需要。

In the design of offshore platform vent system, it is needed to calculate the CO2capacity for the fire putting out.

海上固定平台在设计采用冷放空取代火炬放空时，需要考虑到冷放空口发生火情时使用二氧化碳灭火的设计用量。

A zero-gravity thermodynamic vent system which is desirable to be used in a cryogenic propellant tank is briefly presented.

简要介绍一种可供选择使用的低温燃料贮箱零重力排气系统。

Michael moves through the ducts above the ceiling, crawling along on his belly, and peering below him through the air vent system.

Michael在天花板上的排气管道中爬行，通过下面的排气口了解自己的方位。