pressure balanced bearing seal的意思|示意
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压力平衡轴承密封
pressure balanced bearing seal的网络常见释义
压力平衡式轴承密封 pressure balanced bearing seal 压力平衡式轴承密封 Internal(External) Balanced Mechanical Seal 内置平衡型机械密封 balanced double mechanical seal 平衡式双端面机械密封 ..