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美国有线新闻 CNN 美国食物垃圾占供应量40% 新技术将垃圾变为电力

AZUZ: According to the United Nations, food waste is defined as food that's initial safe for people to eat, but it doesn't get eaten because it's left to spoil or it's thrown out. The U.S. government estimates that food waste in America could be as h

发表于:2018-12-19 / 阅读(51) / 评论(0) 分类 CNN美国有线新闻2016年10月

VOA标准英语2014--Harnessing Ocean Wave Power Provides Cheap Electricity 利用海洋波浪提供廉价电力和饮用水

Harnessing Ocean Wave Power Provides Cheap Electricity 利用海洋波浪提供廉价电力和饮用水 WASHINGTON An often overlooked renewable energy resource is the power of ocean waves. Scientists in California say harnessing energy from the regu

发表于:2019-01-14 / 阅读(75) / 评论(0) 分类 VOA标准英语2014年(三月)
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