R&D

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来源：
China's Foreign Trade | 2009年 / 06期
关键词：
R&D;
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摘要：
Beijing families to keep earthworms for kitchen garbage recycling Twenty families in Chunshu Community in Beijing have volunteered to feed earthworms with organic kitchen garbage and trade earthworms waste for organic vegetables."Under ideal conditions,one kilogram of earthworms can eat up to an equal weight of kitchen garbage per day
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页码：18 / 18
页数：1
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