plano-concave
基本解释
- adj.平凹的
英汉例句
- plano concave lens
平凹透鏡,球平麪凹透鏡 - plano concave
adj. 平麪平一麪凹的(平凹的) - His figure looks very funny in the concave mirror.
他的樣子在凹鏡裡顯得非常可笑。 - An indented or concave surface or area.
凹陷，窪地凹的表麪或地區 - Just as a double convex lens enlarges, so a double concave lens reduces.
正象雙凸透鏡可以放大那樣，雙凹透鏡也可以縮小。