该鼠社群结构变动有明显的季节性。
It is obviously that change of colony structure fluctuate in different seasons.
有明显的季节性和周期性。
There were obvious seasonal and periodic features in rubella incidence.
上覆水中各形态磷浓度呈现明显的季节性变化。
The concentrations of different phosphorus species in overlying water change seasonally.
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