单词：optimum diameter ratio
单词：optimum diameter ratio 相关文章
Do you have trouble keeping up with your things? Are you constantly misplacing items and wasting your precious time hunting for them? Then the Lapa may be what you need. Lapas communicating The Lapa is a device that you attach to something you dont w
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Pre-Listening Vocabulary pi (): the circumference of a circle divided by its diameter ratio: the relationship between two amounts circumference: the distance around an edge of a circular shape diameter: the line across the centre of a circle coincide
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图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t
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Artist Creates Homes for the Homeless 艺术家为无家可归的流浪者打造小房子 Welcome to American Mosaic from VOA Learning English. Im Caty Weaver. An artist in Oakland, California is using his skills to help the homeless. Greg Kloehn bui
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BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
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obsession n.迷住, 困扰 obstruct v.阻隔, 阻塞, 遮断(道路、通道等) n.阻碍物, 障碍物 opt vi.选择 optimum n.最适宜 adj.最适宜的 option n.选项, 选择权, /经/买卖的特权
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