To deal with this problem, it is necessary to research and improve the air exhaust system.

为了解决这些问题，需要对铝电解机械排烟工艺进行研究改良。

HPLC, GC-MS, AAS, and spectrometer atomic fluorescence on 5th floor need air exhaust function.

液相色谱、气相色谱、原子吸收、原子荧光室前处理间或缓冲间需要进行排风。

Unique air exhaust device which completes exhausting the steam and vapor from the heating oven.

特殊排气装置，可将烘箱内水气及废气排除。

Purpose: Discussing the relation between closure pneumothoraxs air exhaust time and curative effect.

目的：探讨闭合性气胸抽气时间与疗效的关系。

The reason why the automatic exhaust valve failed to be used for air exhaust from siphon tube was investigated.

对自动排气阀不能用于虹吸管排气的理由进行了分析。