concavo convex
英漢例句
- Push the handle gently until the concavo convex parts of both clutches occlude automatically.
用手輕推手柄待兩個(gè)離合體的凸凹處重合后便會(huì)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(gè)離合體的凸凹處重合后便會(huì)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。