Thus, the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits, whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.
含
岩系、镁质容矿岩
矿形成的物质基础，区域变质及混合岩化作用、
造活动矿形成的必要条件。
造作用Thus, the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits, whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.
含岩系、镁质容矿岩矿形成的物质基础，区域变质及混合岩化作用、造活动矿形成的必要条件。
声明：以上例句、词
类均由互联网资源自动生成，部未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
