叶蜡石矿物与杂质矿物热膨胀系数绝缘程度应相近，并呈交织结构。
The thermal expansion parameter of pyrophyllite mineral should close to that of the impurity minerals and show intertexture structure.
叶蜡石矿物与杂质矿物热膨胀系数绝缘程度应相近，并呈交织结构。
The thermal expansion parameter of pyrophyllite mineral should close to that of the impurity minerals and show intertexture structure.
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