季节指数的英语是什么?

季节指数 [jì jié zhǐ shù]
seasonal index
In a seasonal index research on a market fluctuation basis, analyzes the seasonal fluctuation of air-passenger market and air cargo market from1997 to2001, and in accordance with the seasonality of the market, raises some suggestions for a rational production arrangement and capacity adjustment.
运用季节指数分析方法,对1997—2001年间中国航空旅客运输市场和航空货物运输市场的季节性变动进行分析,并提出了根据季节变动规律合理组织生产和调配运力的建议
constant seasonal index
固定季节指数