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.
请说明管线的现场试验和冲洗(吹净)方法。
Please explain the method of field test and flushing (blowing off) of the pipelines.
请申明管线的现场试验以及冲刷（吹净）要领。
Please explain the method of field test and flushing(blowing off )of the pipelines.
请申明管线的现场试验以及冲刷（吹净）要领。
Please explain the method of field test and flushing(blowing off )of the pipelines.
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