direct current prospecting
direct current prospecting
直流勘探
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The current management-upgrading move in the geological prospecting trade is a direct and effective way for improving the long-existed poor management commonly found in prospecting units.
作者认为，管理水平低是地勘行业长期以来存在的普遍问题，开展地勘单位管理升级是解决这一问题的直接而有效形式。
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