直角

Use the image of cartesian coordinate system to solve trigonometic problems.

用直角坐标系的图像来解决有关三角函数的题目。

One of three axes in a three-dimensional Cartesian coordinate system .

指结晶系统，以成直角的三个相等的轴为特点。

In this research, the plane 2D mathematical model under Cartesian coordinate system and the

首先建立了直角坐标系正交网格下的平面二维数学模型及复杂边界适体坐标条件下的三维紊流数学模型，对方程的离散差分格式、控制方程的求解、初始边界条件、动边界处理等问题进行了分析研究，并编制相应的计算程序。

The distribution formulae of measuring errors in Cartesian coordinate system are derived and a step-changing processing method is proposed based on the error distribution.

对多目标跟踪问题中的关联区域进行了空间描述，得到了直角坐标系下量测误差的分布公式，提出了基于误差分布的变步长处理方式。

Vector mainly in plane geometry, Cartesian coordinate system, trigonometric functions, such as knowledge-based, learning through Vector, on the one hand, our mathematical expression of understanding entered a new field, on the other hand will enhance our space imagination capacity, the ability of thinking and analysis, the ability to solve practical problems.

向量主要以平面几何，直角坐标系，三角函数等知识为基础，通过向量的学习，一方面将我们对量的数学表达式的认识进入到一个新的领域，另一方面将增进我们的空间想象能力，思维能力和分析，解决实际问题的能力。

Wind and sea may displace the ship's center of gravity along three orthogonal axes; a rectangular Cartesian coordinate system .

风和大浪可能会将轮船的重心移至三者直交的轴线；笛卡尔直角坐标系。

The percentage of permeability contribution and the corresponding ordinal number were obtained and used to draw the cumulative distribution curve of permeability in Cartesian coordinate system.

通过对任意一组空间分布相对均匀的渗透率数据降序排列，计算出渗透率贡献百分数及其对应的序数百分数，并在直角坐标系中绘制出渗透率累积分布曲线。

Based on time domain Maxwell equations, the basic theory of Finite Difference Time Domain of the cartesian coordinates is introduced in detail.

本文由时域麦克斯韦方程出发，在直角坐标系下介绍了时域有限差分方法的基本原理，分析了电磁波在空间的传播规律及吸收边界的吸收效果。

Understand what the differences are between polar coordinates and the Cartesian plane.

了解之间的差异极坐标和直角平面。

Now is a good time to go back to bed if you do not know what a vertex is, but in a geometry for dummies fashion, I will let you in on the secret: a vertex is the location of a point in space, usually described by its x, y and z Cartesian coordinates.

现在是一个很好的时间去回到床上如果你不知道什么是顶点，但在时装几何傻瓜，我将让你的秘密：一个顶点是一个点的位置在空间，通常是描述其x，y和z直角坐标系。

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。