单词：inlay sealing material
单词：inlay sealing material 相关文章
[00:03.89]You will hear three pieces of recorded material. [00:08.75]Before listening to each one, [00:12.90]you will have time to read the questions related to it. [00:17.55]While listening, [00:20.72]answer each question by choosing A, B, C or D. [
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[00:03.81]bottom line :结余；结算 [00:05.82]bundle :n.搭售商品 [00:07.49]convention :n.(专业)展览会 [00:09.37]demonstration :n.展示 [00:11.46]entrance :n.入口 [00:13.29]go with :选择；决定采用 [00:15.17]high traffic :a.高流量
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Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre
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Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h
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The workshops are hidden throughout the narrow streets of Oltrarno. Artisans ply trades learned not in schools but through apprenticeships and years of experience. Silversmith Donato Zaccaro has been creating silver furnishings and tableware for over
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