Ore produced in the ultra basic rock, mainly by the iron content of tremolite mineral composition.

矿体产于超基性岩体中, 主要由含铁的透闪石矿物组成.

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The basic rock material is usually finely crystalline and is referred to as the matrix.

基性岩石物质具有完美的晶体结构,一般构成基质.

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The effect of basic rock thickness, mining height and advancing speed on roof breaking is analyzed.

并进一步分析了基岩厚度 、 采高、推进速度对顶板破断的影响.

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