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Aluminum remained unknown until the nineteenth century, because nowhere in nature is it found free, owing to its always being combined with other elements, most commonly with oxygen, for which it has a strong affinity.
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铝直到19世纪才被人发现，由于铝总是跟其他元素结合在一起，最普遍的是跟氧结合；因为铝跟氧有很强的亲和力，由于这个原因，在自然界找不到游离状态的铝。 |
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Aluminum strip double-glazing glass: Using aluminum frames filled with desiccant, apply double-track seal method, sealing the gap between two or more pieces of glasses.
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铝条式中空玻璃：由充填了吸湿干燥剂的铝框，采取双道密封的方式，将两片或多片玻璃间隔密封而成。 |
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Aluminum-adrum tupe steel blind rivets.
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超级长度轴不锈钢窗帘铆钉。 |
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Aluminum-framed arc doors inlay coffee acrylic sheet by consummate craft.
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弧形铝框门镶嵌咖啡色亚克力，工艺精湛。 |
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Aluminum-magnesium alloy board production.
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铝镁合金多年手板制作。 |
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Alumni Relations cultivates the former participants of TRF programs to build programs, mentor, and serve.
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前受奖人关系计划的目的在于培养过去曾参与扶轮基金会计划的人才，以储备计划、顾问及服务。 |
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Alva told police that he is thrilled that the recovered headdress will soon be returned to Peru.
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艾娃告诉警察，他很高兴得知这件头饰将被归还秘鲁。 |
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Alvar Aalto's 1930 armchair, at right, is made of birch plywood and solid birch.
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阿尔瓦·阿尔托1930年创作的这把由白桦木制成的扶手椅（右）便是如此。 |
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Alvaro Recoba plays a pin-point pass to van der Meyde wide on the wing. The Dutchman mis-kicks his cross and Atalanta win a goal kick.
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雷科巴精确地将球分给了边路的安迪，但荷兰人没有接应到，亚特兰大门球。 |
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Alveoli may rupture causing the air into the cerebral circulation.
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空气进血液后会进入到小的动脉和脑部的微小血管，造成血流受阻。 |
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Alves's agent Jose Rodriguez Baster has now insisted that they want Sevilla to accept Chelsea's bid.
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阿尔维斯的经纪人何塞-罗德里格斯坚持要求塞维利亚接受切尔西的报价。 |
