early 15c., from Old French concave (14c.) or directly from Latin concavus "hollow, arched, vaulted, curved," from com-, intensive prefix (see com-), + cavus "hollow" (see cave (n.)).
concave 英文释义
1. curving inward
concave 双语例句
1. The palm of one's hand is slightly concave.
人的手掌是微凹的.
来自《现代汉英综合大词典》
2. 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.
来自辞典例句
3. The cloven hooves are sharp edged , elastic and concave.
蹄锋利,呈凹形, 富有弹性.
来自辞典例句
4. Alternative characterization of concave and convex functions which is sometimes useful.
对于凹函数和凸函数还有一个替补的表征,有时它是有用的.
来自辞典例句
5. In adults its contour may be straight, slightly concave or slightly convex.
成人肺其形状可以是直的, 轻微凹下或轻度突出.
来自辞典例句
concave 实用场景例句
a concave lens/mirror
凹透镜；凹镜
牛津词典
...a concave stomach.
凹陷的腹部
柯林斯高阶英语词典
...the concave bottom of an empty hair spray container.
空喷发胶罐凹进去的罐底
柯林斯高阶英语词典
The mirror is concave.
镜子呈凹面.
期刊摘选
A concave shape micromachined variable capacitor was presented which has high Q and wide tuning ranges.
提出了一种高Q值、宽调节范围的凹型结构微机械可变电容.
期刊摘选
Concave polygons have to be divided into several convex polygons, and are convex polygon clipping algorithms.
解决了大多数算法将凹多边形裁剪分解为凸多边形处理存在计算时间长、难度大等问题.
期刊摘选
Having greater curvature on the concave side than on the convex side . Used of a lens.
凹凸的凹面曲率大于凸面曲率的.
期刊摘选
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.
辞典例句
The hood and front mask theme is characterised by offset surfaces and concave and convex volumes.
引擎盖和前脸主题以偏移曲面和凹凸雕琢效果为特征.
期刊摘选
Alternative characterization of concave and convex functions which is sometimes useful.
对于凹函数和凸函数还有一个替补的表征,有时它是有用的.
辞典例句
Therefore, although the font is small, but very deep concave, but very clear.
所以字体虽然小, 但是凹得很深, 而且非常清晰.
期刊摘选
Stretch manner has different influences on concave boundary and convex boundary of model.
伸展方式对于凹形边界和凸形边界具有不同的影响.
期刊摘选
The concave grating on the film of PPTA is prepared by the double beam interference illumination.
