upper and lower solutions in reversed order  反序上下解

Divergence in the upper and lower troposphere  高低层散度

upper and lower solutions and monotone iterative technique  上下解和单调迭代法

cold in the upper and heat in the lower  上寒下热

coupled lower and upper solutions  耦合下上解

deficiency in the upper and excess in the lower  上虚下实

excess in the upper and deficiency in the lower  上实下虚

generalized upper and lower solutions  一般化的上下解

heat in the upper and cold in the lower  上热下寒

interaction between the upper and lower atmosphere  大气上下层相互

Lower and upper solutions  上下解; 下、上解

Lower and upper solutions method  上下解方法

L-quasi upper and lower solutions  L-拟上下解

L-quasi-upper and lower solutions  L-拟上下解对

method of lower and upper solutions  上下解方法

method of upper and lower solutions  上下解方法; 上、下解法

quasi-upper and lower solutions  L-拟上下解

Ratio of the upper and lower jaw  上下颌比例

river sections in the upper and middle reaches  上中游干流河段