concave

n.

凹面，成凹形；

adj.

凹的；

vt.

使成凹形；

复数：concaves过去式：concaved过去分词：concaved现在分词：concaving第三人称单数：concaves

concave mirror n. 凹透镜

concave surface凹面，内弧面

concave grating凹面光栅

concave lens凹透镜；近视镜片

concave bank凹河岸；冲刷河岸

1. The palm of one's hand is slightly concave.
   人的手掌是微凹的。
2. A cylinder is a hollow tube with a closed concave base that permits it to stand upright.
   钢瓶是中空的管道，封闭的底部是凹入的，这样可以直立起来。
3. His figure looks very funny in the concave mirror.
   他的样子在凹镜里显得非常可笑。

1. These are aberration-corrected holographic concave gratings.
   下表所列为像差校正全息凹面光栅。
2. The cloven hooves are sharp edged, elastic and concave.
   蹄锋利，呈凹形，富有弹性。
3. This article has described expanding method for repairing the concave retaining ring caused by the hydraulic bulging.
   详细介绍了用扩冲法对液压胀形出现凹形的护环进行修复的方法。

The concave-convex procedure
The concave-convex procedure
The Concave-Convex Procedure (CCCP)
Log-concave probability and its applications
Log-concave probability and its applications
Feature Selection via Concave Minimization and Support Vector Machines
Combined Effects of Concave and Convex Nonlinearities in Some Elliptic Problems
NEARLY UNBIASED VARIABLE SELECTION UNDER MINIMAX CONCAVE PENALTY
Existence and Uniqueness of Equilibrium Points for Concave N-Person Games
On accelerated proximal gradient methods for convex-concave optimization