To reduce sampling number and assure simulation precision, Importance Sampling method and Latin Hypercube Sampling method are coupled with Neumann expansion SFEM respectively.
为了减少随机抽样的次数并保证蒙特卡罗法的数值模拟精度，对比引入了重要抽样法和拉丁超立方体抽样方法；
The rotation angle error affects the measuring precision of relative orientation between projectile and target by Charge Coupled Device(CCD).
以激光干涉仪直线度误差测量为基础研究了数控机床垂直轴滚转角误差的检测方法。
The rotation angle error affects the measuring precision of relative orientation between projectile and target by Charge Coupled Device(CCD).
以激光干涉仪直线度误差测量为基础研究了数控机床垂直轴滚转角误差的检测方法。
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