并对提高农田生态系统投入产出效益的途经和措施进行了探索。
It tells how to get maximum economy benefit and ecological benefit with minimum input on the basis of energy classifying and benefit analysis of input-output.
本文运用指标体系分析方法研究上海高新技术产业的投入产出效益问题。
This paper evaluates and analyses the input-output efficiency in Shanghai high-tech industry by using index methods.
在施用等钾量条件下，硫酸钾镁肥的增产效果和投入产出效益均优于硫酸钾和氯化钾。
In cases of conditions such as potassium, magnesium potassium sulfate fat and the effect of increasing the input-output efficiency are better than potassium sulfate and potassium chlorate.
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