Class A: areal geology survey; solid mineral exploration; geochemical exploration; aerial remote sensing; rock ore appraisal and testing; mineral smelting and processing.

 
  • 5210149甲级:区域地质调查;固体矿产勘查;地球化学勘查;遥感地质勘查;岩矿鉴定与岩矿测试;选冶加经试验。
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目录 附录 查词历史