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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。
- selenium layer 硒层
- 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
- Study of selenium content in Osmunda L. 薇菜含硒量的研究。
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
- Selenium Deficiency the Inner Cause of Avian Flu? 是什么导致禽流感?
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
- What fruit contains selenium element most? 什么水果含硒元素最多?
- What fruit filling zinc and Selenium? 什么水果补锌和硒?
- Selenium is a photoconductive substance. 硒是一种光电导物质。
- 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
- 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 selenium are supplied in the form of sodium selenite. 试验中的硒元素以亚硒酸钠的形式提供。
- Selenium is an important trace element for human heal th. 硒是一种重要的人体必需微量元素。
- A coat or layer enveloping an organ or a part. 被膜一种覆盖器官或身体部位的覆盖层或包被