查询词典 geometrical vector

A man cannot tell whether Apelles, or Albert Durer, were the more trifler;whereof the one, would make a personage by geometrical proportions; the other, by taking the best parts out of divers faces, to make one excellent.

曾经有两位画家--阿皮雷斯和艾伯特丢勒滑稽地认为，可以按照几何比例，或者通过摄取不同人身上最美的特点，用画合成一张最完美的人像。

In order to get higher energy transfer rate and optimumcomprehensive performance of the heat transfer system, the best matching geometrical parameters of W-shaped single eddying tube are sought by optimize design.

通过对W形旋流管的优化设计，使旋流管的结构参数得到合理匹配，以达到更高的能量传递速率，并使换热系统的综合性能最优。

In EDM process,tool wear is one of the primary factors affecting geometrical precision of work piece.

电火花成形加工过程中，工具电极的损耗是影响工件几何形状精度的主要因素之一。

It researches the regularity of A(geometrical cross section area of valve),Sc(obtained by the definition of effective cross section area of valve),Sa and Sv(obtained by sonic velocity air exhaust method) to the change of the opening of valve,x...

研究了A，Sc(根据试验由有效截面积S的定义算出)，Sa及 Sv随阀开度x变化而变的规律，通过对比探讨了求解以上各种有效截面积方法的可靠性及相互关系等。

It mainly studys approximate engineering synthesis algorithm about effective cross section area of valve, Sa, which synthesis by geometrical cross section areas of restrictor in valve flow channel.

重点研究了由阀流道节流口几何截面积合成阀有效截面积 Sa 的近似工程合成算法。

It researches the regularity of A (geometrical cross section area of valve), Sc (obtained by the definition of effective cross section area of valve), Sa and Sv (obtained by sonic velocity air exhaust method) to the change of the opening of valve, x. By contrastive method this thesis discusses the reliability and correlation of all methods above for solving effective cross section area of valve.

研究了 A， Sc （根据试验由有效截面积 S 的定义算出）， Sa及 Sv随阀开度 x 变化而变的规律，通过对比探讨了求解以上各种有效截面积方法的可靠性及相互关系等。

Based on the analysis of the geometrical significance of basic elementary matrix es,the authors put forward some suggestions of teaching of matrixes and transformations in Senior School New mathematics curriculum.

表示"交换某两行的位置"、"把某一行乘以一个非零数"、"把某一行的k倍加到另一行上"的3种基本初等变换的矩阵分别称为基本初等矩阵(1)、(2)、(3)。

It may vary above and below the geometrical ellipsoid of revolution by as much as 100 meters due to the uneven distribution of mass within the Earth.

如果在海洋中没有潮汐，海流和涡旋等运动，在大气中没有气压的变化，那么，大地水准面应和平均海表面一致。

The direction of maximal radiation of the main beam must be directed into the geometrical center of the elliptic surface of the offset parabola.

主波束最大辐射方向必须瞄准偏馈抛物面椭圆表面的几何中心。

The "emmetropia" in geometrical optics and "the normal eye of refraction" in biomedicine were two different concepts, and should be differentiated.

几何光学的"正视眼"与生物医学角度的屈光"正常眼"是两个不同概念，应予以区分

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。