concave
音标发音
- 英式音标 [ˈkɒŋ.keɪv]
- 美式音标 [ˈkɑːn.keɪv]
- 国际音标 [kɔn'keiv, 'kɔnkeiv]
- 英式发音
- 美式发音
基本解释
- adj. 凹的,凹面的
- n. 凹面
- v. 使变凹形
词根记忆
- con(表加强) + cav(空的) + e→凹的
- con + cave(洞)→洞是凹进去的→凹的
英汉例句
- The palm of one's hand is slightly concave.
人的手掌是微凹的. - The cloven hooves are sharp edged , elastic and concave.
蹄锋利,呈凹形, 富有弹性. - In adults its contour may be straight, slightly concave or slightly convex.
成人肺其形状可以是直的, 轻微凹下或轻度突出. - The palm of one's hand is slightly concave.
人的手掌是微凹的. - The graph of a concave function is always below its tangent.
一个凹函数的图象总在它的切线的下方.
词组短语
- concave grating 凹面光栅
- concave slide [光]凹玻片;凹槽载片
- concave refractor 上凹折射层
- concave domain 凹型区域
- concave share 凹形犁铧
短语
英英字典
- curving in
- A surface that is concave curves inward in the middle.
剑桥英英字典
柯林斯英英字典
专业释义
- 凹的
- 凹坑形
Finally, the 3D geometry entity model of gear was got.2. From the view of bionics principle, nine kinds of bionic non-smooth concave surfaces with different sizes and distance of non-smooth units were designed.
2. 从仿生学原理的角度出发,设计了九种不同的大小及间距的凹坑形仿生非光滑表面形态,由于非光滑结构单元为微观非光滑,几何单元小、形态复杂,传统的机械加工不能满足加工要求,所以采用激光表面处理技术来加工其表面非光滑结构。 - 凹嘴
- 凹焊缝
- 凹板
- 凹的
- 凹线
- 凹形的
- 凹形的
- 凹陷
- 凹
- 凹的
- 内凹的
- 下凹的;凹痕