concave

发音

英 [kɒnˈkeɪv]word uk audio image

美 [kɑːnˈkeɪv] word us audio image

单词词源

concave 凹状

con-, 强调。-cave, 洞穴。洞穴状的,凹进去的。

反义词

adj.

convex

双语例句

1. Because there is no abrasion between the concave and convex , the nut is reusable .
因为凹面与凸面没有磨损,螺母可以重复使用。
2. A concave mirror creates an image from this light using a design pioneered in the 17th century , by sir isaac newton .
早在17世纪,艾萨克.牛顿就开创性的利用这个光,让凹透镜产生了一个图像。
3. The roof 's concave shape deflects the wind and redirects it around the stadium .
屋顶内凹的形状可以使经过的风转向,让其环绕球场而过。
4. We can imagine the water spinning regardless of whether the bucket is spinning , by picturing the height of the water and whether it forms a concave surface .
通过想象水的高度和其是否在表面形成凹面,我们可以推测无论木桶是否自转,水都为自转。
5. Most astronomical telescopes employ reflection to focus starlight . A concave mirror creates an image from this light using a design pioneered in the 17th century , by sir isaac newton .
大多天文望远镜都采用反射来聚焦星光,利用凹面镜形成图像,这一设计是17世纪由艾萨克牛顿率先提出。

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