double acting fluid seal的意思|示意

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双作用流体密封

double acting fluid seal的网络常见释义

鼓形橡胶密封 粘弹性高阻尼橡胶材料 high damp viscoelastic rubber material 鼓形橡胶密封 rubber drum seal; double acting fluid seal 多唇往复橡胶密封 multiple lip reciprocating rubber seal ..