We often have to finish the work of transformation between Rectangular Plane Coordinate Systems.
在测量工作中，常需要进行平面坐标系之间的转换计算工作。
In a. plane rectangular coordinate system, mathematics simulation of the change of moisture content in a corn kernel during tempering is presented by the finite element method.
在平面直角坐标下，利用有限元方法，对玉米颗粒在缓苏过程中的含水量变化进行了数学模拟。
In a. plane rectangular coordinate system, mathematics simulation of the change of moisture content in a corn kernel during tempering is presented by the finite element method.
在平面直角坐标下，利用有限元方法，对玉米颗粒在缓苏过程中的含水量变化进行了数学模拟。
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