... rack-type jack 齿条启动器 radial acting hydrodynamic mechanical seal 径向作用流体动压式机械密封 radial air deflector 径向辐射式导流器 ...
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Radial acting hydrodynamic mechanical seal|径向作用流体动压式机械密封件 Hydrostatic mechanical seal|流体静压式机械密封件 ..
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