凹透镜的英文:
concave lens

参考例句:
  • 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。
concave是什么意思
adj. 凹的

  • The mirror is concave.
    镜子呈凹面。
  • 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。
  • A depression similar to that in a shallow concave container for food
    凹形,凹面与浅的凹型盛食物的容器相似的凹处
  • Joining Convex (Outer) Curves to Concave (Inner) Curves
    缝合凸出的弯曲部位和凹曲部位
  • The palm of one's hand is slightly concave.
    人的手掌是微凹的。
lens是什么意思
n. 透镜;镜片;镜头;晶体
v. 给...摄影

  • The lens is easy to scratch or smudge.
    该镜头很容易划伤或弄脏。
  • The lens through which we view the image is called the eyepiece lens
    我们用于观察像的透镜称为目镜。
  • Align the red dot on the camera with the red dot on the lens and mount the lens on the camera.
    把镜头上的红点与相机上的红点对准,把镜头固定在相机上。
  • Glass blanks of photochromic spectacle lens
    GB/T9105-1988光致变色玻璃眼镜片毛坯
  • This lens can magnify 20 diameter.
    这个透镜能放大20倍。

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