concave
英 ['kɒnkeɪv] 美 [kɑn'kev]
| 近义词 | hollow | ||
|---|---|---|---|
- adj. 凹的，凹面的
- n. 凹面
- vt. 使成凹形
中文词源
concave 凹状
con-, 强调。-cave, 洞穴。洞穴状的，凹进去的。
英文词源
- concave (adj.)
- early 15c., from Old French concave (14c.) or directly from Latin concavus "hollow, arched, vaulted, curved," from com-, intensive prefix (see com-), + cavus "hollow" (see cave (n.)).
双语例句
- 1. The palm of one's hand is slightly concave.
- 人的手掌是微凹的.
来自《现代汉英综合大词典》
- 2. 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.
来自辞典例句
- 3. The cloven hooves are sharp edged , elastic and concave.
- 蹄锋利,呈凹形, 富有弹性.
来自辞典例句
- 4. Alternative characterization of concave and convex functions which is sometimes useful.
- 对于凹函数和凸函数还有一个替补的表征,有时它是有用的.
来自辞典例句
- 5. 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.
来自辞典例句