outer region

• 外区

outer region的用法和样例：

例句

1. Manual machines can put pearls in any place in the outer zone.
   手动机器人可以把珍珠放在外区任何地方。
2. The surface of separation between the very hot core and the somewhat cooler outer layer is the radiation front.
   十分热的芯部和略为冷些的外区之间的分界层就叫做辐射波阵面。