convexo-concave
常见例句
- convexo concave
adj. 一麪凸一麪凹的 - convexo concave lens
凸凹透鏡 - 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。 - A concave molding with a cross section that approximates a quarter circle.
飛簷的凹圓線腳截麪近於九十度弧的凹線腳 返回 convexo-concave