concave meaning in English
adj.
凹的，凹面的 (opp. convex)。
n.
凹，凹线，凹面(物)。 the (spherical) concave 〔诗〕苍穹。
vt.
把…弄成凹(面)。
adv.
-ly ,-ness n.
Examples
- The palm of one 's hand is slightly concave ..
人的手掌是微凹的。 - The cloven hooves are sharp edged, elastic and concave .
蹄锋利，呈凹形，富有弹性。 - The graph of a concave function is always below its tangent .
一个凹函数的图象总在它的切线的下方。 - The mirror is concave .
镜子呈凹面。 - The next wave would lift those objects up its steep concave slope .
跟着涌来的浪头又把这些物品举到了那高高的浪峰上。