三-四-五定直角法 three-four-five rule
直角通电法 vertical current flow method
直角坐标法 method of direct coordinate ; Rectangular Coordinate Method
直角分解法 rectangular resolution
直角车缝法 turning a straight corner
垂直线圈倾角法 vertical loop dip angle method
直角座标法 Rectangular Coordinates
三角化直接法 direct method of triangularization
一种是“可变参数内插法”，另一种是用契比雪夫多项式对卫星直角坐标进行高阶内插的方法。
One of them is "the interpolation of variable parameters" and the other is the higher order interpolation of rectangular coordinates of satellites by means of Chebyshev polynomial.
而采用直角三角形法、换面法和旋转法求出一般位置直线的实长对于提高工作效率和数据的准确度有着重要的意义。
The essay recommends three ways of assessing the substantial length of straight line in average positions, which turned out significance in improving efficiency and precision of data.
用泰勒级数法推出直角坐标系下亥姆霍兹方程的七点差分格式和九点差分格式；
The seven-grid difference format and nine-grid difference format of Helmholtz equation in right coordinate in the way of Taylor series method have been derived.
应用推荐