直角坐标方程与极坐标方程的互化是学习解析几何易出错的地方之一。
Right Angle coordinate equation and polar coordinates equation mutually melt is one of places easy to make mistakes in studying Analytic geometry.
建立了斜齿圆柱齿轮侧面及齿根面的直角坐标方程序，应用矢量法确定盘形铣刀齿刃与轮齿侧面及齿根面接触线上各点的参数值。
Parametric values on the contact lines of disc cutter blade and the side surface cogwheel, disc cutter blade and gear root surface are determined by using vector method.
假设我的生命用一个建立在四维直角坐标系里的方程来表示的话。
If my life were expressed as a function in a four-dimensional Cartesian coordinate system.
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.
文中建立了在直角坐标系中表示的，联系机器人极限距离位置与关节位置的约束方程组。
A system of nonlinear constraint equations relating the position of hand having extreme distance to the positions of joints for robot are derived in rectangular co-ordinate system.
基于C - W方程，推导了用直角坐标和轨道根数描述的远程导引段多冲量变轨段策略的方程，同时给出了求解方程组的迭代算法。
Based on the C-W equation, equations with both rectangular coordinates and orbital elements for the impulse maneuvers in long-distance guidance are derived.
基于C - W方程，推导了用直角坐标和轨道根数描述的远程导引段多冲量变轨段策略的方程，同时给出了求解方程组的迭代算法。
Based on the C-W equation, equations with both rectangular coordinates and orbital elements for the impulse maneuvers in long-distance guidance are derived.
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