diurnallyadv.天天(只在白天)
diurnaladj.每日的;白天的
Diurnal change of photosynthetic rate光合速率日变化
diurnal and nocturnal activity rhythm昼夜活动节律
Diurnal variation of meteorology element气象要素日变化
diurnal variation of photosynthetic rates光合作用日变化