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- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- A convex surface, body, part, or line. 凸面、凸面体、凸面部分或凸线
- 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。
- This completes the proof of the convexity theorem. 这就完成了凸定理的证明。
- The convex block is arranged on the adhesively attached layer. 凸块配置于沾附层上。
- 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
- Just as a double convex lens enlarges, so a double concave lens reduces. 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
- 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
- Characterized by convexity;protuberant. 突起的，凸状的有凸出的特征的;突出的，隆起的
- Characterized by convexity; protuberant. 突起的，凸状的有凸出的特征的；突出的，隆起的
- 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
- Light can be collected with the convex. 凸透镜具有聚集光线的作用。
- The convex surfaces faces toward the left. 凸面朝左方。
- A convex lens is used to concentrate rays of light. 凸透镜用于聚集光线。
- A stone tool with a convex side. 龟甲形石斧一边凸起的石制工具
