The phenomena of agroecological environment are becoming worse and worse in the arid and semi-arid regions that has become the predominant obstacle for agriculture development.
在干旱、半干旱区,农业生态环境日益恶化的现象比较严
,
为农业
展的
。
The phenomena of agroecological environment are becoming worse and worse in the arid and semi-arid regions that has become the predominant obstacle for agriculture development.
在干旱、半干旱区,农业生态环境日益恶化的现象比较严,为农业展的。
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