concavo-concave
基本解釋
- adj.兩凹的；兩面凹洼的
英漢例句
- concavo concave
n. 雙凹形 - His figure looks very funny in the concave mirror.
他的樣子在凹鏡里顯得非常可笑。 - 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。 - A concave molding with a cross section that approximates a quarter circle.
飛檐的凹圓線(xiàn)腳截面近于九十度弧的凹線(xiàn)腳