经济绿肥覆盖
Economical green manure mulching
氮肥经济施用量
the maximum economic rate of N fertilizer applicat
the maximum economic rate of N fertilizer application
(火用)经济性能
exergoeconomic performance
(火用)经济优化性能
exergoeconomical optimal performance
《恒生经济月报》
hang seng economic monthly
《经济、社会与文化权利的国际公约》
International Covenant on Economic， Social and Cultural Rights
International Covenant on Economic
Social and Cultural Rights
《香港经济趋势》
hong kong economic trends
《信报经济月刊》
hong kong economic journal monthly
《一九XX年第二季经济报告》
Second Quarter Economic Report 19XX