... ice cradle 冰床罩 ionization constant 电离常数 industrial exhibition 工业展览会 ...
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ice e cradle 冰床罩
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Unique climate and geographical condition make Heilongjiang province become an origin of ice lamp, especially provincial capital Haerbin city is a cradle of ice and snow art.
极地冰雪中可以反映气候环境的环境地球化学指标主要是可溶性杂质和不可溶性微粒。
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