名词
中文翻译：Unknown
同义词：
['gravel prospecting', 'gravel exploration']
例句：
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1. Boulder prospecting is a method used to search for minerals in rocks.
砾石勘探是一种用于在岩石中寻找矿物的方法。
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2. The geologist conducted boulder prospecting in the area.
地质学家在该区域进行了砾石勘探。
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3. The team successfully discovered a new type of mineral during their boulder prospecting trip.
团队在他们进行砾石勘探的旅行中成功发现了一种新的矿物。