特色优质烟叶
characteristic and high quality tobacco
部分比例优势
Unconstrained partial-proportional odds
高校优质中水
high-quality middling water in colleges and univer
优质烟田
High quality tobacco producing field
优质优价
high quality and favorable price
higher quality and higher price
资本要素投入的最优比例
optimal ratio of capital input
最优比例制导
optimal proportional guidance law
发射核子中-质比
free neutron-proton ratio