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Mineral exploration made important progress in .coal, uranium, iron, gold, silver, copper, nickel, zinc, lead, antimony, tungsten, molybdenum, vanadium, kainite and characteristic non-metal.

矿产勘查、铁、金、银、铜、镍、铅、锌、锑、钨、钼、、钾盐及特色非金属矿产取得重要进展。

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high sign, high society, high spirits, high spot, high street, high style, high table, high tech, high technology, high tension,

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3G, 401(K), a,

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CNN 10 学生英语 2018年9月合

Columbia University researchers using this machine found the vapor has toxic metals like chromium, nickel, zinc and lead and as we know, there's no safe level of lead.

比亚大学的研究者使用这种机器发了气雾中含有有毒金属,例如铬、镍、锌、们知道,只要含就是危险的。

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high-angle, highball, highband, highbinder, highbinding, high-blooded, high-blown, highboard, high-boiling, highborn,

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3G, 401(K), a,
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