单词盒子

concavo concave

C 开头单词

同根派生

     

英汉例句

  • His figure looks very funny in the concave mirror.
    他的样子在凹镜里显得非常可笑。
  • An indented or concave surface or area.
    凹陷，洼地凹的表面或地区
  • 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。
  • A concave molding with a cross section that approximates a quarter circle.
    飞檐的凹圆线脚截面近于九十度弧的凹线脚
  • 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