After years of theoretical and practical research, geological resource classification and evaluation method of volcanic landscape has some foundation, but there also.
通过多年的理论和实践研究，火山地质景观区的资源分类与评价工作有了一定的基础，但同样存在诸多问题。
After years of theoretical and practical research, geological resource classification and evaluation method of volcanic landscape has some foundation, but there also.
通过多年的理论和实践研究，火山地质景观区的资源分类与评价工作有了一定的基础，但同样存在诸多问题。
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