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根据地质矿产部与法国地质矿产调查总局(BRGM)达成的地质统计学互访考察协定,笔者于1984年4月参加了考察小组赴法考察.
According to the Geostatistical Exchange Inspection Agreement between the Ministry of Geology and Mineral Resources and the French General Administration of Geology and Mineral Resources (BRGM), the author participated in the study tour to France in April 1984.