All CDD in January,February,March,November and December are zero. The annual mean value of CDD in warm season is 826.7 degree-day. There is a increasing trend of 39.0 degree-day for CDD per decade.是什么意思_All CDD in January,February,March,November and December are zero. The annual mean value of CDD in warm season is 826.7 degree-day. There is a increasing trend of 39.0 degree-day for CDD per decade.在线翻译_英语_读音_用法_例句