Although oil pumping into the pipeline has stopped, the residual oil in the pipe is now the main concern.
虽然向管道中泵油已停止，管道中的残油目前成为了主要关注对象。
The pipe with original welding residual stresses is analyzed under different conditions of PWHT.
对存在原始焊接残余应力的管接头在不同的热处理条件下进行分析。
Closed when the first compressed air dryer closed closed again, and the air pipe of compressed air evacuation, so as to avoid poor drying or pipeline residual moisture, air quality.
关闭时请先将压缩空气关闭再关闭干燥机，并将空气管路中的压缩空气排空，以免因干燥不良或管路水分残留，影响空气质量。
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