Studying the spreading circumstance of meteorite crater group, will be very economically valuable to the research of spreading rule and reasonable development of rare mineral water, special mineral.

 
  • 掌握陨石坑群的分布状况,对珍稀矿泉水、特种矿物等资源分布规律的研究和合理开发也有着重大的经济价值。
今日热词
目录 附录 查词历史