economic periodic fluctuation 经济周期波动
real estate periodic fluctuation 房地产周期波动
spreading of periodic fluctuation 周期性波动的传导
periodic fluctuation of mine production 矿山生产周期性波动
periodic speed fluctuation [机] 周期性速度波动
periodic economic fluctuation 经济的周期波动
Area electric power charge is variable peculiarly with periodic fluctuation.
区域电力负荷具有特殊的变化规律。
The gas bubble evolution introduces the periodic fluctuation of potential or current.
由于阳极气泡的析出，引起电极电位或电流的波动。
In more than ten years the periodic fluctuation of China's macro economy operation is very obvious.
近十几年来我国宏观经济运行周期性波动十分明显。
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