英语释义

• the property possessed by a concave shape

• a shape that curves or bends inward

片语

geometric concavity几何凹函数

blade concavity叶片内弧

concavity analysis凸性分析方法

annular concavity[古生]

concavity slide载物凹玻片；凹载玻片

concavity theory凸性引理

knife concavity[畜牧]

Linfen Concavity临汾凹陷

concavity die凹模

英汉例句

• a minimax theorem generally involves three assumption conditions: space structures on sets x and y, the continuity of the functions and the concavity and convexity of functions.

  一个极大极小定理一般涉及三个假设条件：集合x和y的空间结构，函数的连续性和函数的凹凸性。

• in analytic geometry, the study of graphs of functions, calculus is used to find high points and low points (maxima and minima), slope, concavity and inflection points.

  在医学领域，结石可以用来寻找最佳角度分支血管以便最大限度地流动。

• application indict the plastic can satisfy the need for concavity casing plastic and hole enlargement.

  现场应用结果表明，该整形器可以满足内凹形套管变形整形扩径的需要。

• the algorithm for detecting the convexity and concavity of vertices of a simple polygon is commonly used in computer graphics.

  简单多边形顶点的凸、凹性判断是计算机图形学中常用的算法。

• concavity and convexity always can be seen in the architectural design, no matter in single building, combination of architectural fabric and even details.

  凹入与凸出给人不同的视觉感受和心理感受，凹凸在建筑造型过程中，大至单体造型，小至建筑构件组合，乃至建筑细部等方面都有所体现。

• with the concavity and integrability of sublinear terms near zero, the symmetry results for a class of sublinear elliptic equations are given by making use of the moving-plane method.

  摘要 本文利用次线性项在零点附近的凹性和可积性，用移动平面法给出了一类次线性椭圆方程正解的对称性。

• the formation of arch effects will bring the sand filling over the region of deep concavity hindered and the degree of compaction of molding sand at the deep concavity reduced.

  它的形成会阻碍型砂向深凹区的填充，使得深凹处砂型紧实度降低。

• conclusions:the decrease of endplate concavity enhances the protective effect of the disc on the breakage of the vertebral body.

  结论：终板凹陷程度的减小增强了椎间盘对椎体的保护作用；

• thereinto the concavity and convexity of functions is important condition in minimax theory.

  其中函数的凹凸性是极大极小定理的重要条件。

• during more and more open pit transiting to concavity open mining, people make much account of the study on the best slope mechanical configuration, which in favor of the stability of concavity slope.

  随着越来越多的露天矿山转入深凹露天开采，有利于深凹边坡稳定性的最优边坡力学形状研究越来越受到人们所认识和重视。

• using the technique of concavity analysis, the sufficient condition of nonexistence of global solutions to the equations with dynamic boundary conditions and positive initial energy is obtained.

  利用凸性分析方法，在方程具有边界条件和正初始能量情况下得到整体解不存在的充分条件。

• it is studied in this thesis two methods of proving inequality with the monotonousness and concavity of functions.

  函数方法是证明不等式的重要方法。在本文中介绍了利用函数单调性和凹凸性证明不等式的两种方法。

• on the basis of analyzing shape features of tomatoes , leaves and branches , we extract features of roundness , slightness , concavity degree and denseness depending on fourier description .

  研究了西红柿、叶子、枝干的形状特征，通过傅立叶描绘子，提取基于傅立叶系数导出的如圆形度、细长度、凹度、密集度等形状特征。

• at the level of azygos vein, 100% of the lymph nodes of azygos vein and the superior aortic recess were located among the superior vena cava, arch of azygos vein, trachea and concavity of aortic arch.

  在奇静脉弓平面，奇静脉弓淋巴结和主动脉上隐窝位于上腔静脉、奇静脉弓、气管和主动脉凹面所围成的气管前间隙内。

• many results in this paper can be considered as generalizations to the concavity and convexity studies of the optimal functions.

  文中许多结果可以被认为是对最优值函数凹凸性研究成果的更一般拓广。

• importing the concavity map into the displacement channel, i applied the map as a displacement at a level of 0.01 to the model.

  进口的凹凸映射到位移通道，运用地图作为位移在0.01的水平的模型。

• most mandibular incisors with long concavity had single root canal.

  多数存在长形下凹者为单根管。

• the paper discusses a new method of square surface for nc processing. the problem is analyzed on existent processing method. error is calculated in the convexity and concavity processing.

  针对目前二阶表面加工存在的问题，论述了一种二阶表面数控加工的新方法，分析现存方法存在的问题，计算了凹凸面加工中的偏差。

• experimental investigations show that the semiempirical concavity calculation formulation given here are practical.

  提出的计算凹度的半经验公式，经过实践考验证明具有一定的实用价值。

• objective:to investigate the effects of variations in vertebral endplate concavity on the mechanical behaviors of the lumbar motion segment.

  目的：研究终板凹陷程度变化对腰椎运动节段生物力学影响。

• the results showed that a concavity in the surface could be clearly observed at the center of starches.

  结果表明：微波淀粉颗粒表面出现凹坑，降低了膨胀度和溶解度、冻溶稳定性。

• sometimes different combinations in the concavity and convexity of functions may construct a new theorem.

  函数凹凸性的不同组合往往可以构成一个新的极大极小定理。

相似词

cup使成杯状；为…拔火罐

depression沮丧；忧愁；抑郁癥；洼地；不景气；低气压区

valley(Valley)人名；(英)瓦利；(法)瓦莱

相反词

bulge使膨胀；使凸起

camber成弧形；使拱起

convexity凸面，凸状；中凸

jut突出部分；尖端

projection投射；规划；突出；发射；推测

protrusion突出；突出物

protuberance突起，突出；结节，瘤