单词：LEFM (linear elastic fracture mechanics)
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It has barely taken any time at all for Chinese counterfeiters to rip-off Apple's latest creation. 对中国的仿冒者们来说，山寨苹果的最新产品似乎不需要任何准备时间。 Fake versions of the Apple Watch can be bought for as
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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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