矿石

When the depth of material to be removed is great, the face pit is cut back in a series of bench es. Ramps connect the different levels so that trucks or railways can remove the ore.

当排移物料的深度很大时，矿坑的边坡被切割成一系列的台阶，不同水平的台阶用斜坡连接，以便于汽车或火车运走矿石。

It uses the latest manufacturing technology, the unique structural design, processing and end product was the cube, no tension and cracks, grain shape pretty well, can crusher feed size less than 500mm, not more than 350MPa compressive strength of the various coarse, medium and Fine materials granite, limestone, concrete, etc.

它采用最新的制造技术，独特的结构设计，加工成品呈立方体，无张力和裂缝，粒形相当好，能破碎进料粒度不超过500mm、抗压强度不超过350MPa的各种粗、中、细物料（花岗岩、石灰石、混凝土等），广泛应用于各种矿石破碎、铁路、高速公路、能源、水泥、化工、建筑等行业。

The invention provides a method of monitoring and controlling a mineral mixture flow in a froth flotation cell of a flotation plant which includes the steps of obtaining a series of digital images extracted of froth characteristics from a flotation cell.

本发明提供对在浮选工厂的泡沫浮选槽中矿石混合流进行监视和控制的方法，该方法包括得到从浮选槽提取的浮选特征的一系列数字图象的步骤；将数字图象传送给用于将它处理成数字参量泡沫特征的参量信号的计算机的步骤；响应接收的参量信号产生控制信号以便使浮选槽中的泡沫特征发生所需变化的步骤；和响应控制对浮选槽中的泡沫特征进行控制以便使浮选槽中的泡沫特征发生所需变化的步骤。

PDA(particle dynamics analyzer system) was used to measure the flow velocity of particles in the XFD-12 flotation cell, the results show that tangential mean velocity in the radial direction changes from positive to negative in the flotation cell, naught point emerge in the medium of the radial direction ,it is where backward fluid emerge ,shear stress of backward fluid induce the particle detachment from bubbles .

汁算数据与实际矿石筛析结果都表明，紊流强度增大，泡沫中粗粒级含量减小。 4。用PDA在XFD-12型8L浮选机中测定的速度值，进行混合区、分离区、泡沫区紊流运动功率谱计算，得紊流脉动频率，混合区小于20Hz，分离区在20-30Hz之间，泡沫区在25-35Hz之间，浮选槽内紊流脉动以低频为主，且紊流脉动动能是混合区大于分离区大于泡沫区。

"Forge: Open furnace for heating metal ore and metal for working and forming, or a workshop containing forge hearths and related equipment."

锻铁炉：一种用来加热金属矿石和金属以便加工和成形的敞口炉。

"Forge: Open furnace for heating metal ore and metal for working and forming, or a workshop containing forge hearth s and related equipment."

锻铁炉：一种用来加热金属矿石和金属以便加工和成形的敞口炉。

The most prent organic contaminants associated with sediments and soils include: Polynuclear aromatic hydrocarbons, chlorinated hydrocarbons such as polychlorinated biphenyls, dioxins, furans, etc. and fossil-fuel derived hydro-carbons and their derivatives.

与一些沉积物和污泥有关的最普遍的污染物包括：多环芳烃类物质，氯化烃类如多氯联苯、二噁英、呋喃等，还有矿石燃料燃烧所产生的烃类及其衍生物。

The technical measures of 750m3 blast furnace strengthening smelting of Laiwu iron and steel general works consist of improving the coke quality,increasing burden quality,promoting reasonable burden structure,determining reasonable adjustment parameters of upper and lower blast furnace,using the waste heat recovery device of hot stove and using the spraying and coating technique for making liner of blast furnace,etc.

莱钢750m3高炉强化冶炼的措施包括改善焦炭质量，提高入炉矿石质量，促进炉料结构合理；确定合理的上下部调剂参数，抓好炉前工作，应用INBA法新转鼓水渣处理系统、热风炉余热回收装置、高炉喷涂造衬等新技术。

Game begins, the farmer that should let us above all goes collecting ore, conserce strength and store up energy, scrape up fortune, but expedite a farmer to go at the same time explore enemy's situation, saw them develop what establishment, speed how, archaism says: The bosom friend tells the other, 100 battle do not danger.

游戏开始，都要首先去让我们的农民去开采矿石，养精蓄锐，积攒财富，但同时派出一个农民去探敌情，看他们都发展了什么设施，速度如何，古语有云：知己知彼，百战不殆。

Rock People have a definitive relationship or kinship with rocks of all kinds, including mountains, minerals, geodes, river rocks, pebbles and sand.

石头人和所有种类的石头都有一种正向的或者说亲密的关系，包括山脉、矿石、水晶簇、礁石、鹅卵石和砂石。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。