barren rock

The artical scientifically and rationally appraises the characteristics and stability of both ore and rock by way of the study on the parameter of physical mechanics for No.

通过对 31- 1#矿体矿岩物理力学参数的研究 ,对矿岩特性及稳固性进行了科学、合理地评价 ,为矿体开采过程中采矿方法的选择、采场结构参数的确定及回采过程中 ,地压的管理提供了科学依据 ,从而保证了矿山生产的安全可靠

Evaluation of underground ore-rock stability based on equivalent value method

基于等效数值法的地下开采矿岩稳定性评价

Regarding several main factors influencing underground mine's Ore-rock stability as fuzzy subsets,a fuzzy logic inference system is established for classification of ore-rock stability.

将影响地下矿山矿岩稳定性的几种主要因素视为判别矿岩稳定性级别论域上的模糊子集 ,建立矿岩稳定性分级的模糊逻辑推理系统 ,针对金山店铁矿矿岩特征 ,对其矿岩稳定性级别进行模糊逻辑推理运算 ,所得结果与实际基本相符。

Prediction for block caving velocity of ore-rock is a complex dynamic process that relates to the caving rule and to the relation between caving and time.

矿岩自然崩落速率预测是一个涉及崩落规律和崩落与时间相依关系的复杂动态过程,通过数值模拟的方法,对流变断裂型矿岩的自然崩落规律和崩落速率进行了模拟研究。

Uncertainty evaluation on determination of gold in rock and mineral by flame atomic absorption spectrometry

火焰原子吸收光谱法测定岩矿中金含量的测量不确定度评定

Optimization of drilling and blasting parameter of fracture rock

破碎矿岩凿岩爆破参数优化方法探讨

Class A: rock ore appraisal and testing.

3721423甲级：岩矿鉴定与岩矿测试。

Class B: rock ore appraisal and rock ore testing.

68810912乙级：岩矿鉴定与岩矿测试。

The protolith restoration of the second diggings wall rock in Gongchangling iron ore,Liaoning province

辽宁弓长岭铁矿二矿区围岩原岩恢复

The lime-stone rocks bed up against the coal.

石为岩层紧靠着煤矿层。

The mineral composition of a sample of igneous rock.

火成岩样品的矿物构成

pockets of manganese in the rock;

岩石中含有锰的矿层；

A branch from a dike or vein.

岩脉分支，矿脉分支

Technology of Mineral Materials

矿物岩石材料工艺学

Rocks and minerals are inorganic.

岩石和矿物都是无机物.

FORMATION CONDITIONS OF THE MINERALIZED STOCK IN THE SHAXI PORPHYRY COPPER(GOLD)DEPOSIT, ANHUI PROVINCE

安徽沙溪斑岩铜(金)矿床矿化小岩体的形成条件

ON THE SOURCE OF ROCK-AND ORE-FORMING MATERIAL IN YULONG PORPHYRY COPPER BELT EASTERN TIBET

论藏东玉龙斑岩铜矿带成岩成矿物质来源

The Bayan Bold gold deposit is of porphyry-type related to adakite.

矿床类型属于与埃达克岩有关的斑岩型金矿床。

Class A: rock ore appraisal and testing; mineral smelting and processing.

83700671甲级：岩矿鉴定与岩矿测试，选冶加工试验。

Porphyry Characteristics and Metallogenic Significance of Pulang Porphyry Copper Deposit

普朗斑岩铜矿床斑岩特征及其成矿意义

The Rock-and Ore-forming Ages of the Laochang Porphyry Molybdenum Deposit in Lancang,Yunnan

云南澜沧老厂斑岩钼矿成岩成矿时代研究

ON THE METALLOGENESIS & REFORMATION OF VOLCANIC ROCK-INTRUSIVE ROCK IN DONGCHUAN REGION

东川矿区火山岩—侵入岩的改造—成矿作用

The rock-body which have the relation of mtallogenic of copper-nickel ore have the characteristic of compound rock-body. They belong to mafic, ultramafic rocks which type are gabbro, pyroxenite and peridotite.

与铜镍矿成矿有关的岩体具有复合杂岩体特征,多属辉长岩—辉石岩—橄榄岩型镁铁—超镁铁质岩。