您要查找的是不是：
- 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
- Miss Cam is qualified for joining the club. 兰蒙小姐有资格参加俱乐部。
- concave cam 凹形凸轮
- A cam that activates another part; a wiper. 凸轮启动另一部分的凸轮; 挺杆
- 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。
- On the base of Hertzian stress theory of elastic mechanics,a new kind of disk cam mechanism whose follower has concave circle arc bottom is developed. 根据弹性力学的赫兹应力理论，提出了一种从动件结构形状为凹圆弧底的新型盘状凸轮机构。
- 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
- A projecting cam, as on a rotating shaft, that activates another machine part. 凸轮如转轴上突出的挺杆，使另一个机器零件活动
- The palm of one's hand is slightly concave. 人的手掌是微凹的。
- A rod moved by a cam to operate the valves in an internal-combustion engine. 阀门挺杆通过凸轮转动的杆，用来操纵内燃机的阀门
- 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
- Miss Cam is qualified for joining the club . 兰蒙小姐有资格参加俱乐部。
- Concave on one side and convex on the other. 一面凹进一面凸起的
- A cam that activates another part;a wiper. 凸轮启动另一部分的凸轮；挺杆
- Convex on one side and concave on the other. 凸凹的一面凸一面凹的
- I'll be so glad if you cam come. 假如你能来,我将是非常高兴的
- To the excellent concave and convex carving skill. 碑上的阴阳刻。
