) ( 1 x ) ( 2 x ] , [ b a 一、利用直角坐标系(right angle coordinate system)计算二重积分 ［X-型］ ) ( 2 x y a b D ) ( 1 x y D b a ) ( 2 x y ) ( 1 x y ( , )d ( , ) D f x y D...
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Equivalent and Difference of Natural Coordinate System with Right Angle Coordinate System When Constraining Anti-force Comes into Being;
在一个惯性坐标系中与物体静止质量相当的能量； 等于静止质量乘以光速的平方。
The design of a universal sampling system based on right-angle coordinate robot for liquid samples is described.
介绍了以直角坐标机器人为基础的通用型液体样品自动采样系统的设计。
The three axes of the coordinate system of right Angle of the space are vertical.
空间直角坐标系的三个轴互相垂直。
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