Thin structure, double seal.

超薄结构，双重密封。

youdao

One valve includes a cap (56) that provides a double seal (58, 60) .

一个阀门包括提供了双重密 封件（58、60）的盖子（56）。

youdao

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。

youdao

The Leamington Spa ace won the opening set 3-1 and the players shared the next four legs before Gulliver hit double five to seal victory.

BBC: SPORT | Other Sport | World Darts 2004 | Fordham stuns Barneveld

Withers then crashed over to seal Crusaders' first double over a Super League side, meaning Whitehead's late score for the Bulls was little more than consolation.

BBC: Crusaders 44-20 Bradford

But the fourth seed's serve became more erratic, making four double faults, and Nadal capitalised with two breaks to seal the first set.

BBC: Nadal powers to Barcelona victory