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- 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。
- silica layer 硅氧层
- 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
- The crude oil is chromatographed over silica gel. 粗制油状物用硅胶进行色谱分离。
- 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
- Containing little silica, as igneous rocks. 基性的基性的，含有比较少量的二氧化硅的作为火成岩的
- It is a compound of aluminum, silica, and fluorine. 它是铝、硅和氟的化合物。
- 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
- Containing little silica,as igneous rocks. 基性的基性的，含有比较少量的二氧化硅的作为火成岩的
- Silica is a basic unit in many ceramics. 硅是一种基本的陶瓷制品。
- Hydrophobic silica is the active antifoam agent. 憎水性硅石是一种有效的防泡剂。
- 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
- Beneficiation removes clay and silica to considerable extent. 富集操作除去粘土和硅石达到相当高的程度。
- A variety of silica that contains microcrystalline quartz. 燧石含微小晶状的石英的各种硅石
