氮气吹扫应同时包括空气管线和酸气管线路径。
This nitrogen purge should be routed through both the air line and the acid gas lines.
采气管得用氮气吹扫。
报道上海城市燃气工程中，浦东新港首站至北蔡末站天然气供气管线的通球扫线、全线整体试压以及氮气置换的施工实例。
It reports a practical engineering of natural gas supply pipeline from Pudong New Port to Beicai Station in Shanghai metropolitan fuel gas project.
在配备气管和氮气流量阀就可以作氮吹浓缩器使用；
If we equip gas tubes and nitrogen flow controller, it can be used as a concentrator.
在配备气管和氮气流量阀就可以作氮吹浓缩器使用；
If we equip gas tubes and nitrogen flow controller, it can be used as a concentrator.
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