低氟烧结矿中存在大量微气孔是由于其粘结相的熔点和结晶能力低造成的。
There are many pores in the sinter, which is attributed to low melting point and crystallization capacity of the binding phase.
这次微震群属于冲击地压型矿震，与煤矿开采及回采工程活动有关，属于偶发的局部应力释放。
The event is ore earthquake of rock burst type related to coal mine exploitation and mining activity, the micro-earthquake swarms belong to occasional local stress releasing.
采用微地震定位监测技术对华丰煤矿关键层运动诱发矿震进行了研究。
Studied the shock bump caused by the key stratum movement in Huafeng Colliery using the microseism locating and monitoring technology.
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