dual inside and outside seal 双重内外密封
Outside framework oil seal 骨架油封 ; 外骨架油封
outside pressurized hydrostatic mechanical seal 外加压流体静压式机械密封 ; 外加压流体静压式机械密封件
outside mounted seal 外装式密封
outside mounted mechanical seal 外置式机械密封
That way you'll be able to seal this type of outside wall with a continuous moisture barrier in cooler climate zones.
如果你在凉爽气候区，这样做可以帮你在外墙上形成一个连续的防潮层。
Traditionally, companies maintained a tight seal on any information that was exposed to the outside world and held strict controls on their internal document management systems.
传统上，企业严格限制对外公布的信息，牢牢控制着内部的文档管理系统。
Tear open the seal and key in your code at the ATM machine outside the bank.
只要到银行外的自动提款机把弥封拆开然后输入密码。
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