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2013-05-23 12:21
求翻译：s an upstream product for widely used fertilizers in China, ammonia production expanded from 31.86 million tons in 2000 to 51.67 million ton in 2005, which directly contribute to the growth of overall food production for the country. Current ammonia production technologies in China are developed from both domestic R&D 是什么意思？ 待解决
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s an upstream product for widely used fertilizers in China, ammonia production expanded from 31.86 million tons in 2000 to 51.67 million ton in 2005, which directly contribute to the growth of overall food production for the country. Current ammonia production technologies in China are developed from both domestic R&D
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