concave的用法和样例：

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。

词汇搭配

concavo-concave两凹的
convexo-concave半凸半凹面的...
plano-concave平凹的
concave joint凹缝
concave edge凹边,凹面
concave mirror[物]凹透镜
concave bottom凹板分组,凹底...
concave bit凹形凿,凹形钻头...
concave curve凹曲线
concave tile凹瓦
concave slope凹坡
concave curvature凹曲度
concave bank冲刷河岸,凹岸...
concave surface凹面
concave plane凹底刨,凹平面...
concave grating凹光栅
concave weld凹焊缝,轻型焊,凹面...
concave saw凹面锯,蝶式圆锯...
concave cutter凹半圆成形铣刀,凹半...
concave lens凹透镜

【近义词】

hollow空的
sunken沉没的
depressed沮丧的
dished中凹的

【反义词】

convex中凸的

儿童英语读物 The Mystery in the Cave CHAPTER 5 The Aldens Get a Warning

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50 The Mystery in the Cave

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影视英文歌曲

音乐咖啡厅:Something Worth Living For-Shayne Ward

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音乐咖啡厅

英文摇滚歌曲：Evanescence - New Way To Bleed

Save your twisted enemy, So you might earn forgiveness. And now your whole world is waiting, So why can't you speak? I feel it coming over me. I'm still a slave to these dreams. Is this the end of everything? Or just a new way to bleed? So go and tel

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英文摇滚歌曲

音乐咖啡厅:Emmelie de Forest - Change

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音乐咖啡厅

音乐咖啡厅:Christina Grimmie - I Won't Give Up

When I look into your eyes It's like watching the night sky Or a beautiful sunrise There's so much they hold And just like them old stars I see that you've come so far To be right where you are How old is your soul I won't give up on us even if the s

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音乐咖啡厅

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Armeniaca vulgaris Lam.