concave
['kɔn'keiv]
adj.凹的
n.凹面, 凹线,凹形
例句与用法：
A long stick with a concave attachment at one end for shoving disks in shuffleboard.
推铲一端带有凹头的长棒，用于在打圆盘游戏中推动圆盘
A concave molding with a cross section that approximates a quarter circle.
飞檐的凹圆线脚截面近于九十度弧的凹线脚
An indented or concave surface or area.
凹陷，洼地凹的表面或地区
His figure looks very funny in the concave mirror.
他的样子在凹镜里显得非常可笑。
词形变化：
副词: concavely | 名词: concaveness | 动词过去式: concaved | 动词过去分词: concaved | 动词现在分词: concaving | 动词第三人称单数: concaves |
a.
凹的, 凹面的
a concave mirror
凹镜
vt.
使成凹形
n.
凹面; 凹面物; 凹曲线[C]
concave
过去式：concaved
过去分词：concaved
现在进行时：concaving
名词复数：concaves
词形变化：
副词: concavely | 名词: concaveness | 动词过去式: concaved | 动词过去分词: concaved | 动词现在分词: concaving | 动词第三人称单数: concaves |
同义词：
hollow | sunken | depressed | dished |
反义词：
convex |
词义辨析：
同义参见:
depressed
hollow
sunken
反义:
a.内凹的
convex
concave[kɔn'keiv; 'kɔnkeiv]adj.1.■凹的，凹形的，凹入的，凹面的[参较 convex]n.1.■凹，凹面；凹曲线，凹线vt.1.■使成凹面，使成凹形，使凹陷变形vt.concavedconcaving
concaveconcave[ˈkɔnˈkeiv]adj.1.■凹（面）的concave lens凹透镜concave mirror凹面镜
词性变化concave[ˈkɔnˈkeiv]n.1.■凹（线）， 凹面（物）， 拱形vt.1.■把...弄成凹（面）
继承用法concavelyadv.concavenessn.concavern.1.■凹面体
[ˈkɒnkeɪv]
adjective
- having an outline or surface that curves inwards like the interior of a circle or sphere
（轮廓，表面）凹的。 比较 convex （义项1）
concavely
adverb
concavity
noun
语源
- late Middle English: from Latin concavus, from con- 'together' + cavus 'hollow'
concave
形容词 concave:
curving inward
concave
■Fibrosis was more marked on convex side than that on concave side.Two patients might be suffered from congenital myopathies.
74%脊柱侧凸患者存在肌肉组织纤维化，其中34%患者呈重度纤维化，凹侧较凸侧更显著。
■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。
■Concave on one side and convex on the other.
一面凹进一面凸起的
■These are aberration-corrected holographic concave gratings.
下表所列为像差校正全息凹面光栅。
■In order to test concave aspherical surfaces precisely, a binary phase twin computer-generated hologram (CGH) is proposed and designed.
为实现对凹非球面的高精度检测,提出并设计了一种二元纯相位型双计算全息图。
■The affection to hobbing and shaving accuracy, and the cause of shaving concave are analyzed in the text.
主要对影响滚、剃齿精度、引起剃齿中凹的原因进行了分析。
■The palm of one's hand is slightly concave.
人的手掌是微凹的。
■A method which is based on Rowland mount and use ZEMAX software to design flat field holographic concave grating is given in this article.
介绍一种从罗兰圆结构出发,利用ZEMAX光学软件设计平场全息凹面光栅的方法。
■Introduced the characteristics of piercing die for the wristwatch spring,using the incline principle to the contour localization,and used the hard alloy inlaying concave die.
介绍了手表发条冲孔模设计特点。利用斜面原理对外形定位,并采用硬质合金镶拼凹模。
■And it introduced the relation gear tooth concave hole parameter and hob used of tooth cut and rub tooth surplus and match gear geometry parameter.
介绍了齿轮齿根凹圆坑参数与所用滚刀的关系。
■From the back, the distinctive concave window and two-part boomerang lights give it a purposeful, determined impression.
从背面，凹的独特窗口，分为两部分的飞镖灯给它一个有意义的，坚决的印象。
■His figure looks very funny in the concave mirror.
他的样子在凹镜里显得非常可笑。
■On the assumption that there was a small solid sphere in the focusing area, the scattering field of concave sphere ultrasonic transducer was analyzed.
以凹球面超声换能器为研究对象，假设聚焦区存在一刚性球形微粒，对此时的散射场进行分析。
■Also introduced the measure of prevent the convex and concave die cracking in course of pressing.
优化了模具结构,同时也介绍了在冲压过程中凸、凹模易开裂采取的措施和方法。
■The original model is approximated by a smooth and strictly concave differential equation.
使用动态二次模型，来分析厂商和旅行社之进入和退出旅游电子商务。
■Concave mirror and glass objects, out in the rain...Inverted duotone.
使雨双色版的折射图片 refracted rain duotone.
■It has white socks and some white on its rather concave face, pricked ears and an engaging cheeky and affectionate nature.
具有白色的蹄和白色的凹脸，竖起的耳朵、迷人的头以及强烈向往自然的习性。
■The stone is concave on both the upper and lower surfaces.
冰壶石的上表面和下表面都是凹面。
■There are concave drum, flexible longitudinal drum, isthmic korshinskii ?eadjustable drum, and bow-shaped drum.
凡是有凹背滚筒、不塑性不横切滚筒、峡条可调滚筒、和弓型滚筒。
■Convex on one side and concave on the other.
凸凹的一面凸一面凹的
■Having greater curvature on the convex side than on the concave side.Used of a lens.
凸凹的凸面比凹面曲度更大的。用来指透镜
■The occlusive and close together degree of concave and convex chamfer, decided the wearability of aggrandizement wood floor and service life.
凹凸槽的咬合紧密程度，决定了强化木地板的耐磨性和使用寿命。
■Having greater curvature on the concave side than on the convex side.Used of a lens.
凹凸的凹面曲率大于凸面曲率的。用于指透镜
■It is suitble for concave printing, rubber comex printing gold, suitble for paper printing ink gold, plastic surface printing gold.
凹印、橡皮凸版印金,适用于纸张油墨印金,塑料表面印金。
■A concave molding.
凹圆形凹陷的线脚
■The triangulating and filling of concave polygon could be widely applied in computer graphics and the field of 3D modeling in geosciences problems.
凹多边形的三角剖分及其后续填充处理,在计算机图形学及地学问题三维建模领域有着广泛地应用。
■A depression similar to that in a shallow concave container for food.
凹形，凹面与浅的凹型盛食物的容器相似的凹处
■Intaglio printmaking by type in the concave plates, on behalf of the etching.
凹版型版画 受墨在版材的凹面部位，其代表铜版画。
■Concave printing board comes in two types of square board and circular board, which can customize various kinds of needed typing symbols.
凹版移印板分方形板和圆形活动板两种，可定制各种所需的印刷符号。
■The surfaces of the concave lens may be proportioned so as to aberrate exactly equal to the convex lens.
凹透镜的表面可以进行均匀处理，以便使像差完全与凸透镜一致。
■An indentedor concave surface or area.
凹陷,洼地凹的表面或地区。
■An indented or concave surface or area.
凹陷，洼地凹的表面或地区
■A concave surface, structure, or line.
凹面、凹形结构、或凹线
■A concave mirror would project a real inverted image of the silverpoint onto the panel, which van Eyck would trace.
凹面镜把颠倒的实像投射到木板上，于是范艾克便可以在板子上描画。
■The concave shape behind the spoon head can reduce the pressure to fingers during peeling.
勺柄前部的厚度凹陷可以有效减缓扒皮过程中手部的压力。
■A large curtain or wall, usually concave, hung or placed at the rear of a stage.
半圆形天幕，透视背景巨大的幕布或围墙，通常为凹形，挂或放在舞台后面
■Concave on both surfaces;biconcave.
双面均凹进的；
■Concave on both surfaces; biconcave. Used of a lens.
双面均凹进的；双凹的。用于指透镜
■A molding for a cornice, having a partly concave and partly convex curve in profile, used especially in classical architecture.
反曲线饰纵断面部分为凹线，部分为凸形的檐口的线脚，尤用在古典建筑中
■A concave lens causes rays to diverge as though they are coming from a focal point.
发散透镜使光线分开,就好象从焦点上发出来的那样。
■The top of the muzzle should not slant down (downfaced), nor should it be concave (dishfaced); however, the tip of the nose should lie slightly higher than the root of the muzzle.
口吻上轮廓线不能向下斜（下斜脸），也不能凹陷（盘子脸）；然而，鼻尖应该略高于口吻末端。
■For concave, convex, bag, bowl-like objects, leather bag.... General zig-zag work and lace attaching.
可作蕾丝镶边及一般袋状,碗状,凹,凸产品皮包类之人字形缝纫.
■Leaf blade lanceolate to oblong-lanceolate, thinly leathery; main veins 3, obviously concave adaxially. Peduncle subequaling petiole.
叶片披针形披针形到长圆形，薄革质；主脉3，显而易见凹。花序梗近相等的叶柄。
■Ultimate segments of leaves linear-lanceolate or narrowly lanceolate. Seed face slightly concave.
叶的末回裂片线状披针形的或狭披针形。种子表面稍凹。
■The skull concave tumor is under the curtain the tumor,is located below the cerebellum peduncle the tumor.
后颅凹肿瘤即幕下肿瘤,是位于小脑蒂以下的肿瘤。
■Labellum white with reddish base and yellow middle, orbicular, ca. 1.7 cm in diam., concave, base shortly clawed, apex entire.
唇瓣白色具带红色基部和黄中间，圆形，1.7厘米直径的约，凹，基部具短爪，先端全缘。
■Labellum equaling corolla lobes, narrow, concave, and fleshy, triangular, ovate, or hastate when flattened, base auriculate, apex oblong-rounded.
唇瓣等长花冠裂片，狭窄，凹，和肉质，三角形，卵形，或戟形当扁平时，基部耳形，先端长圆形圆形的。
■Because concave and convex chamfer is occlusive not close together, the meeting after the floor uses period of time causes degum, aperture appears on the floor.
因凹凸槽咬合不紧密，地板使用一段时间后会造成脱胶，地板上出现缝隙。
■There is a concave rose garden of ground down inside his courtyard.
在他的庭院里，有一片凹下地面的玫瑰花园。
■On this basis, the basic model of main-shaft-less concave printer and ADRC are combined to get a new control algorithm.
在此基础上又将推导出的无主轴凹印机粗基本模型与AD-RC相结合，得出新的控制算法。