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工程勘察钻机和砂矿钻机之间具有许多共同之处。
Site investigation drill and placer exploration drill have much in common.
youdao
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很久之前，奥特曼是个富裕的开采金砂矿的小镇。
Long ago, Oatman was a rich gold-mining town.
youdao
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很久之前，奥特曼是个富裕的开采金砂矿的小镇。
Long ago, Oatman was a rich gold-mining town.
youdao