concavo convex

常見例句

• Push the handle gently until the concavo convex parts of both clutches occlude automatically.
  用手輕推手柄待兩個離合體的凸凹處重合后便會自行咬合.
• 5.Push the handle gently until the concavo convex parts of both clutches occlude automatically.
  用手輕推手柄待兩個離合體的凸凹處重合后便會自行咬合.
• concavo convex lens
  凹凸透鏡
• 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。
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