A host of scientific research and studies have made it clear that the current hydropower development on the Lancang River has little impact on the downstream flow and environment.
大量科学调查和研究表明，目前中方进行的澜沧江水电开发对下游水量和环境影响很小。
But because the development peroid and environment cultivated of vegetable are different from these of fruit, the conclusion is not very clear.
但由于蔬菜生长发育周期及其栽培环境与果树有很大的不同，其应用效果尚不清楚。
Porter and SWOT methods, the structure, development and environment of biopesticide industry are systematically analyzed, and its current status in Chnia is made clear.
波特的国家竞争优势理论和SW OT分析法，系统地分析了生物农药产业结构、演变及产业环境，从而明确了中国生物农药产业的现状和存在问题。
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