One of the newest sources of alternative energy is also one of the oldest - water power. The 19th century water wheel, though, bears no resemblance to the 21st century contraptions powered by ocean waves. The wave energy sector has been slow to coale

发表于:2018-12-16 / 阅读(43) / 评论(0) 分类 VOA标准英语2010年(十一)月

历史 电影的发展和摄影技术的发展有着非常密切的关系,关于摄影的发展在之前的文章中已有涉及,在此就不赘述了。在1878年,当人们掌握了捕捉图像的技术后,据说有两个朋友为了打赌证明

发表于:2019-01-08 / 阅读(27) / 评论(0) 分类 托福英语

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(47) / 评论(0) 分类 VOA标准英语2014年(三月)

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-02 / 阅读(64) / 评论(0) 分类 英语新闻

New policies support ailing solar industry BEIJING, Oct. 28 (Xinhua) -- China is creating supportive measures to shore up its ailing photovoltaic (PV) industry, which has been rocked by recent U.S. duties on Chinese exports over alleged dumping. In t

发表于:2019-02-08 / 阅读(62) / 评论(0) 分类 英语新闻

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-21 / 阅读(59) / 评论(0) 分类 2016CRI中国国际广播电台