The micro grain gold can be divided into primary ore and oxidized ore according to the different working performance.
根据矿石加工技术性能，可把微细粒金矿分为原生矿和氧化矿。
The ore has the pelitic and microscale pelitic texture and the micro-bedded, tabular and dense massive structure.
矿石结构主要为泥质结构和显微鳞片泥质结构，构造主要为微层状、板状和致密块状；
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.
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 invention can create the high economic value, removes the waste ore rubbish and processes the micro precipitated barium sulfate in levels.
本发明不但可以创造很高的经济价值，而且，还可以清除废矿垃圾，同时还能加工各个级别的微细沉淀硫酸钡。
By introducing the micro change of water level, its forming condition and forming reasons, the author tries to research the geohydrology and mining technical conditions of the ore field.
通过介绍水位微动变化及其形成条件、产生原因等，试图从另一侧面认识和研究矿区水文地质条件、矿床开采技术条件等。
Native gold as fine grains and micro grains occurs in pyrite, arsenopyrite and limonite. Gold ore is intensively oxidized and characterized by low impurity and easily sorting.
自然金呈微细粒和显微细粒赋存于黄铁矿、毒砂及褐铁矿之中。
Most of the phaneritic gold in protogenous ore, and the inclusion gold and fracture gold in micro-gold ore are closely related to pyrite.
原生矿石中绝大部分明金、显微金中的包体金和裂隙金都与黄铁矿密切相关。
The textures of the manganese-silver ore include aphanitic, colloform, micro-squama and arenaceous textures, and its structures are mainly the vein, colloform and disserminated structures.
矿石的主要结构是隐晶质结构、胶状结构、显微鳞片结构及砂质结构。
Under high temperature structure thermal stress caused by different minerals in composition of ore is the main cause to damage micro structure and results in the strength of ore decreasing obviously.
在高温条件下，由于矿石中矿物成分不同所引起的结构热应力，是造成两种矿石微结构损伤的主要原因，由此而形成的微裂隙导致矿石强度明显下降。
The industrial application of cyclonic static micro-bubble flotation column in the cationic reverse flotation of magnetite ore is its first successful case for the reverse flotation of iron ore.
旋流-静态微泡浮选柱在磁铁矿阳离子反浮选中的工业应用，是国内首次将浮选柱成功应用于铁矿反浮选。
The industrial application of cyclonic static micro-bubble flotation column in the cationic reverse flotation of magnetite ore is its first successful case for the reverse flotation of iron ore.
旋流-静态微泡浮选柱在磁铁矿阳离子反浮选中的工业应用，是国内首次将浮选柱成功应用于铁矿反浮选。
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