... swab-man管道清洁工 swab-off抽干 swab-surgepressure抽吸波动压力 ...
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swab off 用
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Allows faster, safer run-in using packing element that prevents swab-off forces.
—使用的密封材料可以避免抽吸力,更快、更安全地下入工具。
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Provides increased clearance and locked construction for faster, safer run-in with packing element locked against swab-off forces.
—间隙较大和锁定结构,方便快速、安全下入,密封元件避免抽吸力。
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