... 整数系 system of integers 对合系 system of involution 线性方程组 system of linear equations ...
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Thymus is the central organ of cell immune system. The function of thymus is declined because of age-related involution.
胸腺是免疫系统的中枢控制器官，由于年龄相关的演化，其功能逐渐降低。
The result shows that the method has a high speed and high accuracy characteristic and satisfied the real time demand of the CNC servo system. The processing efficiency of involution is improved.
该方法具有插补精度高、插补速度快的特点，能满足CNC系统实时性的要求，可提高渐开线轮廓零件的编程和加工效率。
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