石せき油ゆ探たん査さMeanings1nounoil explorationTechnical term for searching for underground petroleum deposits, used in geology and energy industries.その会かい社しゃは海かい外がいで石せき油ゆ探たん査さを行おこなっている。The company is conducting oil exploration overseas.新あたらしい石せき油ゆ探たん査さ技ぎ術じゅつが開かい発はつされた。A new oil exploration technology has been developed.
