韧性变形是煤的重要变形机制之一，韧性变形所形成的构造煤在煤田中广泛存在。
The ductility deformation is the important one of those mechanisms of coal deformation. The tectonic coal for ductility deformation is very common.
在大量构造煤分析和鉴定的基础上，探讨了变形环境及不同性质应力作用对构造煤结构的影响。
The influence of the deformation environment and different stress action on tectonic coal structure is discussed on the basis of analyzing and identifying a large number of tectonic coal samples.
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