超薄结构，双重密封。
The Submersible Pump and Motor have a double seal with a moisture detection system.
配置潮气监测系统的潜水泵和电机具有双重密封装置。
Vertical three-screw pump adopts double seal mechanical seal and framework oil seal, no leakage.
立式三螺杆泵采用机械密封加骨架油封双重密封方式，无泄露。
It is of built-in type, double seal face, multi-spring, unbalanced type and drive sleeve transmission.
内装式、双端面、多弹簧、非平衡型、传动套传动。
Adopted the German Burgmann mechanical double seal + KENOD develop their own components, completely replace imported sterile seal.
采用德国博格曼机械双端面密封+KENOD自行开发组件，完全替代进口无菌密封。
Furthermore, the double seal of the fuse is formed in common by the 'o' shaped sealing ring and an adhesives layer filled between the metal cap and the fuse tube.
此外，“O”型密封圈以及金属帽与熔管之间填设有粘合剂层共同形成了熔断器的双重密封。
Fully sealed: with cover and pole double seal design to prevent leakage of electrolysis. and the reliability of safe-valve prevent oxygen and dust from outside enter into the battery.
采用电池槽盖、极柱双重密封设计，防止漏液，可靠的安全阀可防止外部空气和尘埃进入电池内部。
Fully sealed: with cover and pole double seal design to prevent leakage of electrolysis. and the reliability of safe-valve prevent oxygen and dust from outside enter into the battery.
采用电池槽盖、极柱双重密封设计，防止漏液，可靠的安全阀可防止外部空气和尘埃进入电池内部。
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