- Its thin outer shell had protected its liquid interior.
它薄薄的外壳保护着它呈液体的内脏。
- The alloy is suitable for making the skin of an ultrasonic plane.
这种合金适宜于制造超音速飞机的外壳。
- Outer space is the common wealth of mankind.
外层空间是全人类的共同财富。
- Double Cloth Bag with Outer Bag Starched.
双层布袋外层上浆。