convexness

常見例句

• A convex surface, body, part, or line.
  凸面、凸面體、凸面部分或凸線
• Just as a double convex lens enlarges, so a double concave lens reduces.
  正象雙凸透鏡可以放大那樣，雙凹透鏡也可以縮小。
• Light can be collected with the convex.
  凸透鏡具有聚集光線的作用。
• The convex surfaces faces toward the left.
  凸面朝左方。
• A convex lens is used to concentrate rays of light.
  凸透鏡用于聚集光線。
• A stone tool with a convex side.
  龜甲形石斧一邊凸起的石制工具
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