Obviously these meridional planes need not be horizontal and vertical.显然,这些子午面不一定是水平的和垂直的.Meridional heat transfer by large - scale eddies is most significant in the upper troposphere of middle latitude.大尺度湍涡的子午线热输送在纬度对流...
The nestlings are feathering out.那些小鸟正在长羽毛.The researchers captured 18 nestlings and then hand and observed them for two years.研究小组捕捉了18只未离巢的雏鸟,并亲自孵育它们,观察它们两年.He was hunting less and, after feeding the nestlings, would p...