Blower system of air knife: the piping from Blower station to air knife.
气刀的风机系统：从风机站至气刀的管道。
Vent the piping and test valve body cavity to remove air or steam.
排放管道和试验阀门体腔内的空气或蒸汽。
The piping system should be blown with the compressed air after being welded.
管路体系焊补后应当用紧缩空气吹净。
The piping system should be blown with the compressed air after being welded.
管路体系焊补后应当用紧缩空气吹净。
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