seasonallyadv.季节性地seasonaladj.季节的；依照季节的；周期性的seasonal vicariad季节性代替种seasonal products季节性商品seasonal increase季节性增长seasonal synusium季节性层片seasonal decrease季节性减少<下降>seasonal freezing季节性冻融seasonal unit root季节性单位根seasonal heat load季节性热载荷Seasonal Riverbank季节河岸seasonal influence季节影响