1.
An external layer, such as bark or rind.
外层外层，如树皮或果皮
2.
The outer layer of a diploblastic animal, such as a jellyfish.
外层双胚层动物的外层，如海蜇
3.
The outermost layer of the fruit wall.
外果皮果皮的最外层
4.
a parka with a waterproof shell.
具有防水外层的短外套
5.
having husk or outer brown layers removed.
去除了外壳或褐色外层。
6.
Office for Outer Space Affairs
外层空间事务处（外空处）
7.
An integument or outer layer of various invertebrates.
表皮皮层非脊椎动物最外层的皮层
8.
the atmospheric layer between the mesosphere and the exosphere.
大气层中介于中间层和外层空间之间的一层。
9.
The outer layer of a blastula that gives rise to the ectoderm after gastrulation.
外胚层囊胚的外层，在原肠胚形成之后生后外胚层组织
10.
Each layer corresponds to one of the layers of a fuel cell: the anode (outer), the electrolyte-membrane (middle), and the cathode (inner).
每层对应着另一个电池的各层：阳极（外层）、电解膜（中层）和阴极（内层）。
11.
Rockets that pioneered outer space.
开拓外层空间的火箭
12.
Comision Nacional del Espacio Ultraterrestre
国家外层空间委员会
13.
Conference of the United Nations on Outer Space
联合国外层空间会议
14.
Conference on the Peaceful Uses of Outer Space
和平利用外层空间会议
15.
arms race in outer space
外层空间的军备竞赛
16.
non-weaponization of outer space
外层空间的非武器化
17.
definition and delimitation of outer space
外层空间的定义和定界
18.
the outer sole of a shoe or boot.
鞋或靴的外层的鞋底。