1)concave-convex凹凸
1.The concave-convex property of a surface is one of the important and classical issues in differential geometry.曲面的凹凸是微分几何学中的经典问题之一,划分出曲面上不同的凹凸区域,对于研究曲面的凹凸以及其他性质是一件很有意义的工作。
2.This article present the continuity,differentiability,monotonicity,concave-convex,parity and periodicity of the function netermined by the definite integral of variable upper limit and variable lower limit,establishes the sufficient and necessary requirements of functional convex and integrability of derived function by using the definite integral of variable upper limit.给出了变上限与变下限定积分所确定函数的连续性、可微性、单调性、凹凸性、奇偶性、周期性,利用变上限定积分建立了函数凸及导函数可积的充分必要条件。
3.Some definitions and discriminating methods have been given on the monotonicity,extreme value,concave-convex and inflection points of the curve r=r(θ).研究了极坐标系中曲线r =r(θ)的切线、法线、渐近线方程 ,给出了r =r(θ)的单调性、极值、凹凸、拐点的定义和判别法 ,从而解决了《数学分析》中未曾解决的极坐标方程所表示的曲线的作图问
英文短句/例句
1.colts tail【气】凹凸云，卷云
2.Metal sheets that have raised sections will work very well.凹凸不平的金属片最好。
3.tactile surface有凹凸纹胶条的路面
4.grooved pattern波纹花纹,凹凸花纹
5.colour embossing[凹凸花纹]着色轧印
6.embossed pattern凹凸纹花纹，浮雕花纹
7.an uneven hemline,ie of a skirt凹凸的底边线（裙子的）
8.meniscus (shaped) lens凹凸透镜，弯月形透镜
9.having a strongly waved margin alternately concave and convex.深波状的，凹凸交替的。
10.the inequalities of the ground地面的高低 [凹凸] 不平
11.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
12.Optimization design of axial symmetric concave-convex angle segment structure in the nook ring supported bulkhead凹角处设舱壁的轴对称凹凸角舱段优化设计
13.Adsorption of Al~(3+) in water with raw soil of attapulgite and hydrochloric acid modified attapulgite凹凸棒原土及盐酸改性凹凸棒对水中Al~(3+)的吸附
14.Optimization design of axial symmetry concave-convex angle segment structure in the salient ring supported bulkhead凸角处设舱壁的轴对称凹凸角舱段优化设计
15.an area of broken, rocky ground凹凸不平的、 多岩石的地面.
16.passing swiftly over rough stonewalls,敏捷爬行在那凹凸不平的石墙上，
17.Convex on one side and concave on the other.凸凹的一面凸一面凹的
18.concave on one side and convex on the other with the concavity being greater than the convexity.一边凹一边凸，而且凹度比凸度大。
相关短句/例句
bumpy road凸凹
1.Analysis of elderly people s discrimination capability on bumpy roads;老年人路况凸凹识别能力的检测与分析
3)Attapulgite[,?t?'p?ld?ait]凹凸棒石
1.Remediation of attapulgite on copper contaminated soil;凹凸棒石修复铜污染土壤
2.Character of attapulgite adsorbent and its application in oil bleaching;凹凸棒石吸附剂特征及其在油脂脱色过程中的应用研究
3.Effect of PP-g-MAH on Mechanical Properties of PP/Attapulgite Composites;聚丙烯接枝马来酸酐对聚丙烯/凹凸棒石复合体系力学性能的影响
4)attapulgite clay凹凸棒土
1.Adsorption properties of attapulgite clay and activated carbon to water-soluble dyes;凹凸棒土与活性炭对水溶性染料的吸附研究
2.Bleaching of hemp seed oil with activated attapulgite clay;活性凹凸棒土对大麻籽油脱色的研究
3.Study on the treatment of chromium contarining wastewater with modified attapulgite clay;改性凹凸棒土净化含铬废水的研究
5)attapulgite[,?t?'p?ld?ait]凹凸棒土
1.Study on the Ion exchange of potassium,calcium and magnesium by alter-attapulgite;改性凹凸棒土对钾、钙、镁离子交换作用的研究
2.Preparation and characterization of nano TiO_2-attapulgite composites;纳米TiO_2/凹凸棒土复合体的制备及其表征
3.Study on the simultaneous determination of Zn(Ⅱ) in food based on pre-separation/enrichment by attapulgite with FAAS;凹凸棒土预分离/富集与FAAS联用分析粮食中Zn(Ⅱ)的研究
6)attapulgite[,?t?'p?ld?ait]凹凸棒
1.Preparation and properties of attapulgite/bentonite/sodium polyacrylate composite superabsorbent;凹凸棒/膨润土/聚丙烯酸钠复合吸水树脂的合成及其吸水速率
2.Separation and purification of Gansu attapulgite clay minerals;甘肃凹凸棒矿石的分离与纯化研究
3.Advances in attapulgite/polymer composites;凹凸棒/聚合物复合材料研究进展
延伸阅读
凹凸1.凹陷和凸起;高低不平。
