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1 Copyright.gov 开放资源 专家推荐
  The U.S. Copyright Office, and the position of Register of Copyrights, were created by Congress in 1897 as a separate department of the Library of Congress. Twenty-two years earlie...
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2 Common Ocean-ice Reference Experiments Datasets 开放资源 专家推荐
  Datasets on this page are sponsored by the CLIVAR Working Group for Ocean Model Development (WGOMD) for use in their Coordinated Ocean-ice Reference Experiments (CORE). There are d...
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3 Contamination of Lake Wewoka and fresh-water sands by disposal of oil-well brines near Wewoka, Seminole County, Oklahoma 未开放资源 机器抓取
  This reports deals with ground-water conditions in an area about 5 miles wide from east to west and 8 miles long from north to south, in Tps. 8 and 9 N., Rs. 7 and 8 E., in Seminol...
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4 Chromite deposits of Kenai Peninsula, Alaska 未开放资源 机器抓取
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5 Chromite deposits of Red Bluff Bay, Baranof Island, Alaska 未开放资源 机器抓取
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6 Chromite deposits on North Elder Creek, Tehama County, California 未开放资源 机器抓取
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7 Chromite deposits of Casper Mountain, Natrona County, Wyoming 未开放资源 机器抓取
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8 Chromite deposits near San Luis Obispo, California 未开放资源 机器抓取
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9 Cobalt-bearing manganese deposits of Alabama, Georgia, and Tennessee 未开放资源 机器抓取
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10 Copper Deposits in the Old Hat Mining District, Pima County, Arizona 开放资源 机器抓取
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