concave

单词concave

基本解释

n.: 凹
adj.: 凹的；凹面的
v.: 把…弄成凹(面)
网络: 凸；凹形；凹曲线

权威解释

• 凹的；凹面的:

  curving in

英汉解释

• 把…弄成凹(面)

• 半圆形底壳

• 天穹

• 叶片内弧

• 凹度

• 脱粒凹板

• 凹处

• 凹板块

• 凹形地带

• 凹面物

• 凹,凹线,凹面(物)

• 凹形的

• 凹的,凹面的

同义词

adj.hollowdished

反义词

adj.convex

例句

• the top of the plastic hat is provided with a ball-shaped concave position, where a press plate and a forcing screw are installed in.

  塑制帽的顶部塑有球形凹进处、并可安装压板和压紧螺钉。

• The head has a well-developed but compaction of the sarcoma, eyes and mouth within a concave in the sarcoma.

  头部有着发达而又紧实的肉瘤，眼睛和嘴凹在肉瘤内。

• Take out a piece of A in A letters along the diagonal nail row, by a concave-convex feeling.

  拿出一张A在A的字母上顺着斜线用指甲一划，就由凹凸感了。

• The time of purchase can be overturned bottom of the pot, pan with your fingers to withstand concave center, with a hard object percussion.

  在购买时可以推翻底部的锅，锅用手指承受凹中心，用硬物敲击。

• It may be flat, concave, and convex or any one of a great variety of shapes to promote turbulence or help control combustion.

  其表面可能为平面、凹面、凸面或任何一种形状，其能促进气缸内涡流运动或有助控制燃烧。

• At least one loop of absorption blind hole is evenly distributed around the segmental concave cavity along the radial direction of plane.

  径向面上沿圆缺凹腔周围均匀分布不少于一圈的吸收盲孔；

• typing, curling, concave design make brush head keep closer to eyes and make it easy to apply mascara onto tiny eyelashes on eye corner.

  强效定型，卷翘，凹面刷头更加贴合眼部轮廓，更易于眼角细小睫毛的涂抹；

• The bottom of the body designed no concave nest. So have lower flowing resistance and prevent valves leakage or damage from trash pipe up.

  阀体底部设计无凹槽，球阀因此具有流阻小，阀体防止污物堆积造成阀门渗漏或损坏等特点。

• A percussion instrument consisting of a concave brass plate that makes a loud clashing tone when hit with a drumstick or when used in pairs.

  钹一种打击乐器，由一个凹铜片构成，当用单个或者双个鼓槌敲击时，可发出高的撞击声

• In this paper, we investigate the natural boundary element method for an anisotropic problem in an infinite domain with a concave angle.

  本文研究无穷凹角区域上一类各向异性问题的自然边界元法。