concave lens

[kɔnˈkeɪv lenz]
  • 释义

  • 凹透镜;负透镜;

  • 双语例句
  • 1、

    Some are flared - that is, thicker at the rim than the center, like a concave lens.

    有些呈喇叭形 ─ ─即边缘较中心厚, 类似凹透镜.

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  • 2、

    A concave lens causes rays to diverge as though they are coming from a focal point.

    发散透镜使光线分开,就好象从焦点上发出来的那样.

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