查询词典 alumina

On the basis of a study and elaboration of data, some important conclusions are presented:(1) ruby deposits in marbles occur in the plutonic metamorphic zones of orogens where deep fault structure is developed;(2) ruby-bearing rocks are calcic crystalline marbles, rather than magnesian marbles;(3) amphiboles in ruby-bearing rocks are not tremolites, but silica-poor, alumina-rich and chrome-bearing calcic amphiboles, such as chrome-bearing magnesio-sadanagaites; and (4) the deposits are genetically of thermodynamical metamorphism type, rather than of pneumatolito-hydrothermal type or skarn type.

目前，对于与此类型矿床找矿相关的若干成因问题的认识，还相当模糊，主要表现在以下几方面：①对此类型矿床的产出构造背景认识不清；②认为含矿岩石为镁质大理岩或镁质夕卡岩；③认为含矿岩石中与红宝石共生的角闪石为透闪石；④认为此类矿床的成因类型为"气成一热液型"或"夕卡岩型"。本文在实际研究(王礼胜，1996)和文献资料整理的基础上，分别对这些问题给予了澄

It can sample voltage and current online, control alumina content and regulate polar distance, analysis and report cell noise, predict the anode effect and warning with sound and light, keep watch on and control artificial schoolwork process. At the same time it can connect with monitoring computer to exchange data and receive parameters, which are tuned and optimized by monitoring computer. And this can make the control to the aluminium electrolytic cell more accurate and reliable.

它能在脱机状态下独立完成电压、电流的在线采集，正常槽况下的准连续按需下料控制与常态极距调节、槽噪声解析与报告，阳极效应预报与声光报警，人工作业工序监控等功能，能在联机状态下与监控机交换数据，并接收来自监控机的参数整定与优化，使对电解槽的监控更为精确和可靠。

The control system for tank can finish independently mostly control functions. It can sample voltage and current online, control alumina content and regulate polar distance, analysis and report cell noise, predict the anode effect and warning with sound and light, keep watch on and control artificial schoolwork process.

在广泛收集专家控制经验与知识的基础上总结出新的控制策略，能在脱机状态下独立完成电压、电流的在线采集，正常槽况下的准连续按需下料控制与常态极距调节、槽噪声解析与报告，阳极效应预报与声光报警，人工作业工序监控等功能，能通过CAN总线与监控机交换数据，并接收来自监控机的参数设定与优化，使对电解槽的监控更为精确和可靠。

Pre-baked aluminum electrolytic cell is a non-linear, multivariable and time-varying system, its model is uncertain. It is difficult to detect the alumina concentration, polar distance, temperature and mole ratio on-line, so we control pre-baked aluminum electrolytic cell by the method of intelligent control.

预焙铝电解槽是一种复杂的非线性、多变量时变系统，模型具有不确定性，浓度、极距、温度和分子比等参数在线检测困难。

Experimental result makes clear, activator of alumina load potassium carbonate has very good catalysis active.

考察了K2CO3负载量、催化剂用量、反应时间、反应物摩尔配比对反应结果的影响。

Theseshistose pyrites being composed principally of coal, flint, alumina, andsulphuret of iron–the latter in excess–it was necessary to separate thesulphuret of iron, and transform it into sulphate as rapidly as possible.

这些黄铁矿石的主要成分是炭、火石、矾土和硫化铁，其中硫化铁的含量过多，必须使它分离，尽快地把它变为硫酸盐。

The expansion capacity at the refinery will be in the first quintile of low cost alumina production globally.

在扩展能力的炼油厂将在低成本的氧化铝产量在全球的五分之一。

Keywords dynamic strength;alumina;damage;recompression;hugoniot elastic limits

动态强度；氧化铝陶瓷；破坏；二次压缩； Hugoniot弹性极限

The results show that high temperature and mass ratio of alkali to red mud lead to more alumina into the aqueous phase and the decrease of A/S in brown mud.

结果表明，溶出温度高、碱／泥比大有利于Al2O3的回收，相应的终赤泥的铝／硅比较低。

The refractoriness of High-alumina clinker is up to 1780℃, it has strong chemical stability and good physical properties.

高铝矾土熟料耐火度高达1780℃，化学稳定性强、物理性能良好。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48