您要查找的是不是：
- enamel layer, outer 外釉质层
- outer enamel layer 外釉质层
- Having a cortex or a similar specialized outer layer. 有皮的有皮的或具有相似的专门发育的外部覆盖的
- The pots are made with blue enamel. 这些锅上有蓝色的搪瓷。
- Some of the enamel on this pan is chipped off. 这平底锅上的搪瓷有些已脱落。
- Dust the repair to prevent adhesion to outer cover. 清整修补处以防与外胎粘连。
- Teeth have a hard surface layer called enamel. 牙齿有一层叫做釉质的坚硬表层。
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- An outer coat of glaze on a piece of pottery. 外层釉陶器釉面上的第二层釉
- The enamel of her teeth is very white. 她牙齿的珐琅质很白。
- The outer walls of the building were painted blue. 这座建筑的外墙被漆成了蓝色。
- Rust has already bitten into the enamel. 铁锈已经烂进搪瓷里去了。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- A loose outer garment, such as a cape. 披风，斗篷一种宽松的外衣，例如斗篷
- Has anybody ever seen any beings from outer space? 有人见到过外星人吗?
- Covered with an outer layer or film. 覆盖有外层或薄膜的。
- The two modules docked in outer space. 两个飞行舱在外层空间对接。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- The outer projecting portion of the ear. 心耳耳朵的外部突出部分
