凸透镜的英文:
convex

参考例句:
  • A convex lens is used to concentrate rays of light.
    凸透镜用于聚集光线。
  • He focused the sun's ray on a piece of paper with a burning-glass.
    他用一面凸透镜把阳光在纸上聚成焦点。
  • Just as a double convex lens enlarges, so a double concave lens reduces.
    正象双凸透镜可以放大那样,双凹透镜也可以缩小。
convex是什么意思
adj. 凸出的;凸面的
n. 凸面体;凸状

  • Draws a single, convex polygon.
    画一个凸多边形。
  • There is a large convex mirror above the fireplace.
    壁炉上方有一面大凸面镜。
  • On his map, the surface of the earth is convex.
    在他的地图上,地球表面呈圆凸状。
  • A convex molding just below the abacus of a Doric capital.
    多立斯柱头顶板下的凸出装饰。
  • The convexity of the seed capsule is of decisive importance in host selection
    种子囊的突起对寄主的选择起着决定性的作用。

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