您要查找的是不是：
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- 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 middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- A layer, as of doubled-over cloth or of paperboard. 一层一层，如折叠过的布料或纸板的
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
- There is a fluorescent lamp hanging in the room. 屋里吊着一只荧光灯。
- fluorescent layer 荧光层
- A thin, flat layer or scale, as that of a fish. 外表组织薄而平的一层或鳞状物，如鱼鳞
- Assembling Tunable Time-Resolved Fluorescence Layer onto Nano-Gold 纳米金末端修饰的时间分辨荧光组装
- Do you use fluorescent lighting? 您使用日光灯吗?
- See Fluorescent Minerals and Pigments! 观察荧光颜料和矿石!
- This shop sells fluorescent paint. 这家商店出售荧光漆。
- There are two fluorescent lights on the ceiling. 天花板上挂了两盏日光灯。
- Large Two-Line Fluorescent Display. 大两线荧光显示屏。
- Antibodies are conjugated with a fluorescent dye. 抗体接合上萤光染料。
- 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
