| 释义 |
concave /'koijkeiv; kan'kev/ adj (of an outline or surf ace) curved inwards like the inner surface of a sphere or ball. (指轮廓或表面) 凹的 (如圆球之内面) 。 uthe illus at convex. 参看 convex 之插图。 concavity /on'kaevati; kan'kaevati/ n [U] ~ condition; [C] (pl -ties) ~ surface. 凹性; 凹状; 凹面。 |