...ble Wall Bellow Swal）维修方便 (Maintenance-free)波纹管密封阀杆（spindle With Bwllow Swal）双重密封（Secondary Sealing）位置指示（POSTTTION indicator）无升降手轮（Non-rising Handwheel）用途（Selection of Possible Applications）：工业（Indus...
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... double seal 双重密封 double slab block 双长型大厦 double-action self-closing door 双向自动关闭的门 ...
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... dual-rotor helicopter ==> 双旋翼式直升飞机 dual-seal ==> 双重密封 dual-seal tubing joint ==> 双封型油管接头 ...
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双重密封环的组合填料，避免了外泄漏。
The association packing of the double sealed ring, has prevented outside from letting out.
配置潮气监测系统的潜水泵和电机具有双重密封装置。
The Submersible Pump and Motor have a double seal with a moisture detection system.
电离室采用大口径双重密封结构，制作工艺难度大，要求高。
A double casing sealed structure is used in the ionization chamber with thin Windows of large diameter.
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