Moreover, such a long-termvariation is related to the low-frequency variability of the Pacific sea-air systems, and the causes are sophisticated.
而且, 这种长期变化与太平洋海气系统成员的低频变化有相关性, 其变化成因是复杂的。
2
The long-termvariation characteristics of annual mean air temperature, annual mean maximum and minimum air temperature and mean daily range from 1932 to 2002 in Lanzhou are analyzed.