在研究与市场波动相关的市场需求增长率时，在一个供需周期内进行考察更具有现实意义。
To be reality, it is also significant to study the increase rate of demand by considering whole circle of supply and demand.
在研究与市场波动相关的市场需求增长率时，在一个供需周期内进行考察更具有现实意义。
To be reality, it is also significant to study the increase rate of demand by considering whole circle of supply and demand.
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