请问有到德宏的机票吗?
通过几年的试验,已摸索出一套适宜德宏州冬种杂交油葵的品种和栽培技术。
After several years' experiments, varieties suitable for winter planting were selected out and cultivation techniques were summarized.
指出了德宏州水环境所面临的问题及其产生的原因,提出了解决水污染问题的对策。
This article points out the problems with water environment in Dehong and it's the contributing reasons, and proposes the countermeasures.
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