坑道围岩分类的定量化研究是地下工程技术领域中重大课题之一。
Quantized study of rock mass classification is one of the important subjects in the technical fields of underground engineering.
分形理论为流域地貌形态等复杂体系的定量化研究提供了一种有效工具。
Fractal theory provides an effective tool for quantitative study of some complex system such as watershed topographic feature.
通过案例分析可以发现，多种研究手段的结合、定量化研究和景观格局优化评价标准将是格局优化实现的研究方向。
Through analyzing some case studies, it was pointed out that landscape optimization research should integrate multiple methods, make quantitative study, and establish related evaluation standards.
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