chaodao yuansu ji hejin he huahewu
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超导元素及合金和化合物
[拼音]：chaodao yuansu ji hejin he huahewu [外文]：superconducting elements，alloys and compounds 到目前为止，人们已发现在正常压力下有28种元素、约500
[拼音]：chaodao yuansu ji hejin he huahewu [外文]：superconducting elements，alloys and compounds 到目前为止，人们已发现在正常压力下有28种元素、约500
