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科技苑【20140113】看点介绍
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科技苑20140113集剧情：第20140113期
一个年出栏五十万只鸡的养殖场，一年要产生多少鸡粪，治理的压力该有多大?可是，山东莱阳市的这家养殖场，却只看到有鸡，看不到鸡粪，场里场外也见不到鸡粪的影子。那么多的鸡粪究竟上哪去了呢?rnrn rnrn
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