查询词典 rectangular formula

This paper investigates the converse theorem of rectangular projection theorem in descriptive geometry,and furthermore supplements and confirms another converse theorem,If the projection of two lines intersecting vertically fo rms a rectangle on a certain projecting plane,at least one line of the two lines is parallel to the projecting plane.

通过对《画法几何学》中直角投影定理的逆定理的研究，得出："若垂直相交的两直线在某一投影面上投影成直角，则该两直线至少有一条直线平行于该投影面"的推论。

A curve coordinate system is established in which the original problem may be reduced to a fixed boundary problem over a rectangular region and thus may be solved by difference methods .

给出了一种用曲线坐标求解椭圆型偏微分方程自由边值问题的数值解法；该方法通过引入两个辅助问题，它们构成一个曲线坐标系。

The substance of this method is that,when oil and gas production starts declining,square root of annual oil production and accumulated oil production is a declining straight line in rectangular coordinate.

方法的实质是：油气藏产量出现递减之后，年产油量的平方根与累计产油量在直角坐标中是一条下降的直线。

Samuel drew a square of length 5 on the rectangular coordinate plane.

小杰在直角坐标平面上画了一个边长为5的正方形。

"Of or relating to the coordinate system, or to any of three coordinates in it, formed by two polar coordinates in a plane and a rectangular coordinate measured perpendicularly from the plane."

"坐标系的，或者与坐标系有关的，或坐标产生三条坐柱中的任一个的，这个坐标系由一个平面上的两个极线坐标和一个平面上垂直测量的直角坐标形成。"

The former applies to those situations that the formulas of two projections are simple and easy to find out the direct relation of the plane rectangular coordinate.

数值变换法应用范围较广，它可以避开较复杂的投影坐标公式的反解问题，求出两个不同投影平面场上点的对应关系。

, 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。

The bending of rectangular plate is divided into the generalized statically determinate bending and the generalized statically indeterminate bending based on the analysis of the completeness of calculating condition at the corner point.

在分析角点求解条件完备性的基础上将矩形板弯曲划分为广义静定问题和广义超静定问题。

The bending of rectangular plate is divided into the generalized statically determinate bending and the generalized statically indeterminate bending based on the analysis of the completeness of calculating condition at the corner point. The former can be solved directly by the equilibrium differential equation and the boundary conditions of four edges of the plate.

在分析角点求解条件完备性的基础上将矩形板弯曲划分为广义静定问题和广义超静定问题，广义静定弯曲可以由板的平衡微分方程及四边边界条件直接求解，广义超静定弯曲可以由叠加法求解。

The dispersive characteristic in the rectangular corrugation overmoded slow wave structure and analysis on its single mode operation.

矩形波纹过模周期慢波结构色散特性及其单模工作分析；。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样