直角的

In this thesis the one-dimensional STC scheme and the two-dimensional STC scheme in both Cartesian and general coordinates are constructed. The initial condition and boundary conditions are also discussed.

本文发展了一维STC格式、直角座标系和任意曲线座标系下的二维STC格式，并对STC格式特殊的初始条件和边界条件进行了探讨。

Vertex have a sum equal to two right angles. Explain why each edge has the same lengthas the edge opposite to it, i.e. AB = CD, BC = DA, CA = BD.

於 个直角。试明为麼每一条棱都与它所对著的棱的长相等，即是AB = CD

, the motion of a particle is referred to by a rectangular coordinate system.

在图6-1中，质点的运动是用直角坐标系来描述的。

An ancient cosmic or religious symbol formed by a Greek cross with the ends of the arms bent at right angles in either a clockwise or a counterclockwise direction .

万字饰：一个古老的宇宙或宗教象征，由希腊十字的各端成顺时针或逆时针字弯成直角而形成

In diatropism the plant part is orientated at right angles to the direction of the stimulus.

植物的具横向性特征的部分，其生长方向同刺激成直角。

This method can be used to analyze the dispersive characteristic of arbitrary mode SWS with arbitrary boundary in theory.

论文首先在直角坐标系下，给出了FDTD差分方程和周期性边界条件的具体形式，并编写程序，分析了周期性加载金属片矩形波导的色散特性。

The wing generates lift at right angles to the relative wind and thus there is a forward-directed thrust imparted to the animal during the downstroke.

机翼产生的升降机直角相对风，因此是有前瞻性的指示，重点传授给动物在downstroke。

For example, if you draw a triangle on a flat piece of paper the sum of its angles is equal to two right angles (as you know from elementary geometry ).

比如说，如果你在一张平坦的纸张上画一个三角形，它所有内角之和等于两个直角之和（如你从初等几何中所知的）。

Draw a line from your position to form a right angle to the ball's flight line.

从你的位置往球的飞行路线上画一个直角。

Making use of I1 ,I2 ,I3 position Centrifugal rate e and half focal chord p can be calculated. Therefore its easy to transform the equation of the right - angled coordinate branch into polar coordinate equation.

利用I1，I2，I3可以计算出离心率e和半正焦弦p因而可以很容易的直接把直角坐标系中的方程转化为极坐标方程。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。