双凹透镜 meaning in English
biconcave lens
double concave glasses
double concave lens
double-concave lens
Examples
- 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。
biconcave lens
double concave glasses
double concave lens
double-concave lens