concave
adj. 凹的
n. 凹面；凹线；凹形
副词：concavely 名词：concaveness 过去式：concaved 过去分词：concaved 现在分词：concaving 第三人称单数：concaves
近义词：hollow，sunken，depressed，dished，convex，
英英释义
Adjective
- curving inward
例句
用作形容词(adj.)
- The palm of one's hand is slightly concave.人的手掌是微凹的。
- 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。
- His figure looks very funny in the concave mirror.他的样子在凹镜里显得非常可笑。
用作名词(n.)
- These are aberration-corrected holographic concave gratings.下表所列为像差校正全息凹面光栅。
- The cloven hooves are sharp edged, elastic and concave.蹄锋利，呈凹形，富有弹性。
- 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。