1.
water-tight case
不透水外壳, 耐水外壳
2.
pressurized enclosure (Ex p)
正压外壳（Ex p）
3.
oil-filled enclosure (Ex o)
充油外壳（Ex o）
4.
powder-filled enclosure (Ex q)
充砂外壳(Ex q）
5.
Every crustacean has a layer of shell, which is also called the carapace.
甲壳动物体外都有一层几丁质外壳, 称为甲壳。
6.
An enveloping sheath or envelope.
外皮或包膜一个包装壳或外壳
7.
The outer metal shell or case of a bullet.
弹壳子弹的金属外壳或金属外层
8.
To become covered with a crust.
有外壳，有硬皮变得覆有外壳，硬皮
9.
having husk or outer brown layers removed.
去除了外壳或褐色外层。
10.
The protein shell that surrounds a virus particle.
壳体，衣壳包裹着一个病毒粒子的蛋白质外壳
11.
Of or relating to a crust, especially that of the earth or the moon.
外壳的外壳的或与之有关的，尤指地球或月球外壳的
12.
To remove the hulls of(fruit or seeds).
去掉果皮，去壳剥开（水果或种子的）外壳
13.
The casing for the mechanism of a watch.
表壳手表机械装置的外壳
14.
The shell enclosing the meat of a nut.
坚果外壳包围果果肉的硬壳
15.
The thin, brittle, exterior covering of the egg of a bird or reptile.
卵壳鸟或爬虫的薄而易碎的卵外壳
16.
Hard eggs, squishy eggs, leathery eggs,
硬壳卵、扁卵、皮革般外壳的卵、
17.
The supporting case is the outer enclosure of the gyro component.
支承壳体是陀螺组件的外壳。
18.
Insert the lancet (Figure 2) and cut ? , the adductor muscle/s, according to the bivalve.
插入解剖刀(图二),沿著外壳切断闭壳肌.