常見例句concavo concaven. 雙凹形His figure looks very funny in the concave mirror. 他的樣子在凹鏡里顯得非??尚Α?/li>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. 飛檐的凹圓線腳截面近于九十度弧的凹線腳A depression similar to that in a shallow concave container for food. 凹形,凹面與淺的凹型盛食物的容器相似的凹處 返回 concavo-concave