单词：antimony ocher
黄锑土，锑赭石, 黄锑土, 黄锑土；锑赭石, 锑赭石
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The most popular toys this holiday season, as you know, if you're a parent, are zhu zhu pets. They're little robot hamsters that move around or something and there're people going crazy for them. Zhu zhu pets are manufactured in China, and over the w
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At the 1900 World's Fair in Paris, Rudolf Diesel exhibited an engine that could run on oil from vegetables and plants. But Diesel's design was eclipsed by automobile engines that ran on petroleum-based fuel. Today, though, with concerns about the env
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