对流层上层西风急流
Subtropical upper-tropospheric westerly jet
多级阶层式方法
multilevel hierarchical approach
1998年冬季南海上层环流
SCS upper-layer circulation in the winter of 1998
层上同调
cohomology with ceofficients in a sheaf
船中上层建筑
bridge-deck superstructure
大气的最上层
uppermost levels of the atmosphere
地球大气上层地冕
corona of the terrestrial atmosphere