plano-concave
基本解釋
- adj.平凹的
英漢例句
- plano concave lens
平凹透鏡,球平面凹透鏡 - plano concave
adj. 平面平一面凹的(平凹的) - His figure looks very funny in the concave mirror.
他的樣子在凹鏡里顯得非?？尚?。 - An indented or concave surface or area.
凹陷，洼地凹的表面或地區(qū) - 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。