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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.

矿产煤、铀、、金、银、铜、镍、铅、锌、锑、、钼、、钾盐及特色非金属矿产等方重要进展。

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DDO, DDOCE, DDoS, DDP, DDPS, DDR, DDR2, DDS, DDSC, DDSS,

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3G, 401(K), a,

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经济学人 Science and technology

A fifth of the total now recognized have stood the test of time Some like gold iron and sulfur had been known since ancient days Others like manganese, molybdenum and tungsten were recent discoveries.

五分之一目前已知元素经受住了时间,有硫自古以来就被人们所熟知,而锰、钼等则是最近才被发现

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de rigueur, DEA, deac, deaccentuation, deaccentuator, deaccession, deacclimatization, deacetylate, deacetylating, deacetylation,

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3G, 401(K), a,
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