| 单词 | concave |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔band shell〕A bandstand with a concave, almost hemispheric wall at the rear that serves as a sounding board.户外音乐台：凹形的、后部由作为共振板的近似半球形的墙壁构成的音乐台美国传统〔cavetto〕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美国传统〔concave〕A concave surface, structure, or line.凹面、凹形结构、或凹线美国传统〔concave〕He sighed, his concave chest rising and sinking with resignation.他叹了口气, 他凹陷的胸口也随之上下起伏。外研社新世纪〔concave〕Some of the cars have concaved roofs.有些车的车顶呈凹形。外研社新世纪〔concave〕Spoons are concave.调羹是凹形的。英汉大词典〔concave〕The weight of the upper container has concaved the lid of the one beneath it.上方容器的重量把放在它下方的容器的盖子给压得凹进去了。外研社新世纪〔concave〕To make concave.使…凹陷美国传统〔concavo-concave〕Concave on both surfaces; biconcave. Used of a lens.双面均凹进的；双凹的。用于指透镜美国传统〔concavo-convex〕Concave on one side and convex on the other.一面凹进一面凸起的美国传统〔concavo-convex〕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。用于指透镜美国传统〔congé〕Architecture A concave molding.【建筑学】 凹陷的模制件美国传统〔convexo-concave〕Convex on one side and concave on the other.凸凹的：一面凸一面凹的美国传统〔convexo-concave〕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。用来指透镜美国传统〔cove〕A concave molding.内凹线脚：凹陷的线脚美国传统〔crescent〕Something having concave and convex edges terminating in points.新月形物：凹边和凹边汇合成点的物体美国传统〔crescent〕The figure of the moon as it appears in its first or last quarter, with concave and convex edges terminating in points.蛾眉月：月亮在上弦时或下弦时的形状，其凹边和凹边均汇合成点美国传统〔cue〕Games A long stick with a concave attachment at one end for shoving disks in shuffleboard.【游戏】 推铲：一端带有凹头的长棒，用于在打圆盘游戏中推动圆盘美国传统〔cyclorama〕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，挂或放在舞台后面美国传统〔cyma recta〕A cyma in which the upper section is concave and the lower section convex.反S形线脚，上凹：一种反曲线装饰板条，其上部是凹的，而下部是凸的美国传统〔cyma reversa〕A cyma in which the upper section is convex and the lower section concave.波浪曲线装饰板：一种反曲线装饰板条，其上部是凸的，而下部是凹的美国传统〔cymbal〕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，可发出高的撞击声美国传统〔dish antenna〕A microwave transmitter or receiver consisting of a concave parabolic reflector.截抛物面天线：一种由凹形的抛物面状的反射器构成的微波发射器或接收器美国传统〔dish〕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美国传统〔dish〕An open, generally shallow concave container for holding or serving food.碟，盘：一种无遮盖的、通常是浅的凹形容器，用来盛或上饭菜美国传统〔dish〕To hollow out; make concave.挖空；使成凹陷美国传统〔ewe-neck〕A defect in a horse or dog in which the neck is thin and has a concave arch.母羊颈：颈部细小或有凹弧，是某些狗和马身上的一种缺陷美国传统〔hinge joint〕A joint, such as the elbow, in which a convex part of one bone fits into a concave part of another, allowing motion in only one plane.屈戌关节, 绞链关节：屈戌关节（如肘），一块骨的凸出部分与另一块骨的凹进部分吻合，可以允许在一个水平面中运动美国传统〔meniscus〕The curved upper surface of a nonturbulent liquid in a container that is concave if the liquid wets the container walls and convex if it does not.弯月面：容器中之静止液体的弯曲上表面，如果液体浸润了容器壁，那么弯曲面呈凹状；如果没有，就呈凸状美国传统〔metate〕A stone block with a shallow concave surface, used with a mano for grinding corn or other grains.凹面磨盘：有一浅凹表面的石块，与上磨石合用来碾磨谷粒或其它谷物美国传统〔ramp〕A concave bend of a handrail where a sharp change in level or direction occurs, as at a stair landing.弯子：栏杆的凹弯，此处有急骤的高度或方向变化，如在楼梯底座处美国传统〔reflecting telescope〕A telescope in which light from the object is gathered and focused by a concave mirror, with the resulting image magnified by the eyepiece.反射式望远镜：一种物体的光被凹面镜收集并集中的望远镜，所成图像被目镜放大美国传统〔scotia〕A hollow concave molding at or near the base of a column.凹圆线：在柱子底座或接近底座部位的空的凹边装饰美国传统〔socket〕The concave part of a joint that receives the end of a bone.窝：关节中接纳骨头末端凹面部分美国传统〔subumbrella〕The concave underside of the body of a jellyfish.下伞：水母身体下侧的凹面美国传统〔tee〕A small peg with a concave top for holding a golf ball for an initial drive.球座：带有凹顶可放置高尔夫球进行发球的小短桩美国传统〔torii〕The gateway of a Shinto temple, consisting of two uprights supporting a concave crosspiece with projecting ends and a straight crosspiece beneath it.鸟居：神道教的大门，由两道直木支撑着中空的向前突出的横木和下面的笔直横木美国传统 |
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