If fluctuations magnified due to internal interactions exist in the system, entropy will decrease possibly.
如果在系统中由于内部相互作用存在涨落放大，则可能出现熵减。
2
Finally, the physical implication of the microscopic entropy operator and the internal time operator are discussed.
最后讨论了微观熵算符与内在时间算符的物理含义。
3
This paper makes research on internal mechanism of regenerator from the view of entropy. The quantitative relation between the loss and the entropy increase is first derived.