... pressure equalizer 均压器 pressure equalizing valve 均压阀 pressure equalizing 均压 ...
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... 压力降试验 pressure drop test 压力平衡阀 pressure equalizing valve 压力平衡阀 pressure equation valve ...
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switching and pressure equalizing valve 切换均压阀
oil pressure equalizing valve 油压平衡阀
two-pressure-equalizing pressure control valve 两种压力平衡的压力控制阀
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