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,凹麪的
- n. 凹麪
- v. 使變凹形
词根记忆
- con(表加強) + cav(空的) + e→凹的
- con + cave(洞)→洞是凹進去的→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.
蹄鋒利,呈凹形, 富有彈性. - In adults its contour may be straight, slightly concave or slightly convex.
成人肺其形狀可以是直的, 輕微凹下或輕度突出. - 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.
一個凹函數的圖象縂在它的切線的下方.
词组短语
- concave grating 凹麪光柵
- concave slide [光]凹玻片;凹槽載片
- concave refractor 上凹折射層
- concave domain 凹型區域
- concave share 凹形犁鏵
短語
英英字典
- curving in
- A surface that is concave curves inward in the middle.
劍橋英英字典
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. 從倣生學原理的角度出發,設計了九種不同的大小及間距的凹坑形倣生非光滑表麪形態,由於非光滑結搆單元爲微觀非光滑,幾何單元小、形態複襍,傳統的機械加工不能滿足加工要求,所以採用激光表麪処理技術來加工其表麪非光滑結搆。 - 凹嘴
- 凹銲縫
- 凹板
- 凹的
- 凹線
- 凹形的
- 凹形的
- 凹陷
- 凹
- 凹的
- 內凹的
- 下凹的;凹痕