单词:fuel-injected twocycle engine
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Welcome to the Science Talk, the weekly podcast of Scientific American posted on February 18th, 2010. I am Steve Mirsky. And you know what the hottest sport in the world is right now? Thanks to the Winter Olympics, it is, of course, curling. That's t
发表于:2018-12-24 / 阅读(53) / 评论(0)
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发表于:2019-01-16 / 阅读(34) / 评论(0)
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Seminar held for late explosion mechanics scientist BEIJING, Oct. 19 (Xinhua) -- A seminar was held Friday to pay tribute to Lin Junde, an explosion mechanics scientist who was involved in nearly all of China's nuclear tests. The seminar was jointly
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