peapod相关论文
组装好后,这款捷安特Peapod自行车儿童拖车折叠起来特别快,只需扳动竖向支撑顶端的两个把手,然后压下拖车的车篷即可。整个折叠过......
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We present a first-principles calculation on the electronic and optical properties of a hybrid nanotube system consistin......
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