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pre-surveygeneral survey或general investigationdetailed survery或detailed investigation勘探 exploration, 或 prove up
蓝水晶朵朵
1、explore英[?k?spl??(r)]美[?k?spl??r]，v.勘探; 勘查; 探索; 考察; 探究; 调查研究; 探讨; (用手或身体某部)探察，探查。2、[例句]Central to the operation is a mile-deep well, dug originally to explore for oil.那次行动的重点是一口深达1英里的井，最初钻那口井是为了勘探石油。
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