以自然崩落采矿法为研究对象，利用二维颗粒流数值模拟(PFC2D)的原理和方法，研究了自然崩落法矿体崩落规律。
According to the theory and method of particle flow code in two dimensions (PFC2D), the block caving law of natural caving mining method was investigated.
在二维流化床试验装置上，对由大颗粒物料组成的密相鼓泡流态化床进行了试验研究。
On the equipment of two dimensional fluidized bed, we were primarily engaged in experimental research on coarse particle dense bubbling fluidized bed.
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