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本文讨论了两体关联动力学及其若干种等级截断中的守恒定律．数值计算表明：在有限大小的截断的Ｈｉｌｂｅｒｔ空间中两体关联动力学及其若干种等级截断均近似地保持守恒定律．
This article discusses the two-body correlation dynamics and its conservation laws in several levels of truncation. Numerical calculations show that the two-body correlation dynamics and its truncation in several finite truncated Hilbert spaces both maintain the conservation law approximately.