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1933 、 点 dot 1934 、 点阵间距；点阵间隔 latticespacing 1935 、 点焊接 spotwelding 1936 、 醛树脂；电玉 ureaformaldehyde(UF) 1937 、 断面线 crosshatchingline 1938 、 断裂

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Scott and his final team of five arrived at the South Pole in 1912 January to find they had been beaten to it by a Norwegian team led by Roald Amundsen, 1912年一月，斯科特和他的五人小分队 到达了南极点。但不巧，他们发现由挪

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Scott and his final team of five arrived at the South Pole in 1912 January to find they had been beaten to it by a Norwegian team led by Roald Amundsen, 1912年一月，斯科特和他的五人小分队 到达了南极点。但不巧，他们发现由挪

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They wont be strong enough to challenge for females until they are five years old. Til that day, they will regularly hone their sparring skills. They will stay with the group until they mature. During the long winter chill, Lake Baikal transforms fro

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So that's your solar system. And what else is out there, beyond the solar system? Well, nothing and a great deal, depending on how you look at it. 这就是你所在的太阳系。太阳系之外还有别的什么？哎呀，也许什么也没有，也

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Have you ever seen Kate Middleton at an official engagement carrying anything other than a clutch? 你见过凯特米德尔顿在正式场合携带其它东西而不是包包的情况吗？ We know--we too racked our brains (a.k.a. Google) trying to

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LONDON, Aug. 1 (Xinhua) -- Top seed Zhang Jike of China beat Jiang Tianhyi of Hong Kong, China, in five sets to cruise into the men's singles semifinals at the Olympic table tennis tournament on Wednesday. The world champion, world number one and hot

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On our last program, we learned how water bugs manage to stand on the surface of a pond: The pads of their feet resist contact with the water just like wax paper does. This allows the bug to rest on the thin film of surface tension that naturally cov

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Why Frisbees Fly With a gentle flick of the wrist on a warm summer day, you can launch a frisbee on a long and graceful flight. Why do they fly so well? One reason is something called gyroscopic force. This is the tendency of a spinning object to mai