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- His figure looks very funny in the concave mirror. 他的样子在凹镜里显得非常可笑。
- An indented or concave surface or area. 凹陷，洼地凹的表面或地区
- Have you recorded the data in disc? 你已把那些数据存储到磁盘上了吗？
- You can't copy your file with this disc; it's full. 你不能用这张磁盘拷文件，这张盘满了。
- The edge of the disc had been machined flat/smooth. 圆盘的边缘已用机器磨平[光]。
- He wears an identity disc round his neck. 他脖子上挂著身分牌儿。
- The compact disc is a miracle of modern technology. 激光唱片是当代技术的奇葩。
- concave disc 凹面圆盘,球面圆盘
- Late-night disc jockey programs are very popular these days. 最近一个时期，深夜播放流行音乐唱片颇受人们欢迎。
- In ancient times the earth was conceived as a flat disc. 在古代人们认为地球呈扁平的圆盘状。
- 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 concave molding with a cross section that approximates a quarter circle. 飞檐的凹圆线脚截面近于九十度弧的凹线脚
- A depression similar to that in a shallow concave container for food. 凹形，凹面与浅的凹型盛食物的容器相似的凹处
- The palm of one's hand is slightly concave. 人的手掌是微凹的。
- A concave surface, structure, or line. 凹面、凹形结构、或凹线
- Concave on both surfaces;biconcave.Used of a lens. 双面均凹进的；双凹的。用于指透镜
- We observe three sunspot groups on the disc. 在日面上观测到三个黑子群。
- Concave on one side and convex on the other. 一面凹进一面凸起的
- Convex on one side and concave on the other. 凸凹的一面凸一面凹的
- The pain was caused by a slipped disc. 疼痛是因腰椎间盘突出引起的。
