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      dust     
相关语句
  粉尘
    KHG Type Low Dust Shotcrete Set
    低粉尘KHG型混凝土喷射机组
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    STUDY ON RESPIRABLE DUST IN SHUANGYASHAN COALFIELD
    双鸭山煤田呼吸性粉尘的研究
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    Experimental Study on Dust Dispersion in Roadways
    巷道中粉尘弥散的实验研究
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    THE EFFECT OF COAL MINE DUST PARAMETERS ON DUST DETECTION
    井下粉尘统计参数对粉尘检测的影响
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    The Calculation and Analysis of the Dust Discharge Amount of Open-pit Blasting
    露天矿爆破粉尘排放量的计算分析
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    A Theory of Similitude on Two-Phase (Gas-Solid) Flow under Turbulent Condition and Its Application to Model Test on Blowing for Cleaning Dust
    紊流状态下气、固两相流相似理论及其在通风排模拟试验中的应用
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    Investigation on the Inductive Charging of Water Fog and Its Dust Catching Effect
    感应式水雾荷电及其捕效应的研究
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    Review on Dust Depressor Achievements or the World in Recent Ten Years
    近十年世界抑剂成果评述
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    STUDY ON COMPENSATION OF DUST POLLUTION AND LIGHT INTENSITY DISTRIBUTION IN THE LIGHT SCATTERING DUST SENSOR
    光散射粉传感器的染补偿方法及光强分布的研究
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    Study on Properties of Sticking Dust and Resisting Combustion Powder and Its Application
    粘阻燃粉的性能及其应用技术研究
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  烟尘
    DETECTION OF CO' S BEHAVIOUR IN BLASTING DUST
    爆破烟尘中CO行为的测试
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    Water Treatment Technique of Dust Wash Water of Converter and Its Study in Jinan Iron and Steel Group
    济钢转炉烟尘洗涤水处理技术及其研讨
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    A lot of harmful waste dust such as C\2, HC1 and high temperature dust were produced in the process, what's more, the recovery was often lower than 50%. It is necessary to develop a new technique in which the recovery of V2O5 is satisfactory and there is no air pollution.
    此过程排放出大量有害气体Cl_2、HCl和高温烟尘,严重污染空气且难于处理,同时钒回收率往往低于50%,因此,研究一种新工艺代替传统工艺,减少污染,提高资源利用率具有重要意义。
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    Without roasting operation with sodium, the chemical separation method did not produce C12, HC1 and other waste dust. The recovery of Vanadium was more than 75%, the waste solution can easily be treated by using CaCO3 or CaO.
    该工艺的优点在于,不必焙烧原矿,不产生有害气体和烟尘,钒回收率达到75%以上,资源利用率高,同时设备操作简单,最后浸出液通过CaCO_3或CaO,即可达标排放。
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    In this paper, a new replacing-diffusing principle has been raised for removing smoke and dust process in chamber stope. A new calculating formula of air quantity has been developed on the basis of the principle.
    本文对硐室中烟尘排出过程提出了新的置换扩散原理,并依据这一原理推导出新的风量计算公式;
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  降尘
    Test and Reseach on Auto Spray Device for Dust Control
    自动喷雾降尘装置的试验研究
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    Study of Self-adjustable Air-water Sprayeror Dust Suppression
    自调式风水降尘喷雾器的研究
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    STUDY ON INFLUENCE ON MAIN PERFORMANCE OF SHOTCRETE OF DUST REMOVAL INGREDIENTS
    降尘成分对喷射混凝土主要性能的影响研究
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    Application of Spraying and Dust settling in the Coal Handling Environment
    喷雾降尘在煤炭装卸环境中的应用研究
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    The Experimental Research on the Dust reduction Mechanism of Water enriched Gelatin Stemming
    富水胶冻炮泥降尘机理的实验研究
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      dust
           The parameters considered are the applied high voltage U, the air flow F, and the quantity of dust in air m.
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           The Einstein gravitational equations in the spherically symmetric case and for the dust model (i.e., p = 0) have been studied by several authors.
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           In this case, the mixture area consists of abrasive dust from friction pairs, and the surface film is distributed with crumby hard granules, exiguous oxide, carbide granules and sheared slender fibre.
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           The values of optimal fiber radii are determined from the condition of maximal dust capacity of a filter at given limiting pressure drop and total initial efficiency.
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           On the Possible Existence of Radiation Dust Belts in Near-Earth Space
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             For determining the lower limit of explosibility of coal dust cloud in laboratory,the authors have designed an apparatus capable of uniformly producing such clouds.The effect of fineness of coal dust, methane and stone dust on the lower limit of the explosibility of coal dust clouds has been investigated on a number of samples taken from several coalfields. The results obtained show : 1.The lower limit of the explosibility of coal dust clouds is closely related to the volatile ...
                煤尘云的爆炸下限浓度是表征煤尘的爆炸性质的一个重要技术参数,井下防止煤尘爆炸的管理工作常需要参考应用.我们在实验室条件下开展了这项研究工作.为取得正确的实验结果,经过反复多次的试验和改进,建立一套能够制造均匀煤尘云而操作比较方便的实验装置.利用这套装置,初步测量了几种类型煤的煤尘云爆炸下限浓度值,对煤尘的粒度、甲烷以及岩粉等对爆炸下限浓度的影响也做了典型的考察.
    文摘来源
             The article gives a general overview of the achievements obtained during the thirty years since the founding of the People's Republic of China in the fields of ventilation,complex measures of dust prevention,dust prevention in open pit prevention of spontaneous combustion etc.as well as the concern of the Party and the Government over miner's safety and health. The article also points out problem areas in the science and technology of ventilation and dust prevention.The author suggests maj...
                本文综合论述了建国三十年来冶金系统金属矿山在通风系统、综合防尘措施、露天矿除尘、预防自燃等方面所取得的成就以及党和政府对矿工安全健康的关怀。文中指出矿山通风防尘科学技术中存在的问题。以改善矿山环境、防止矽尘危害为主攻方向,作者对今后研究重点提出了建议。
    文摘来源
             The space near a slope in a tunnel,beyond the end of vent jet-flow is,in general,considered as a "stagnation zone: in which the ventilation seems to be ineffective,and the functional range of forced ventilation Ln is equal to the range of jet-flow or it may be expressed aswhere S is the cross section area of a tunnel.But the expression doesn't conform to reality.The fact is that the dust concentration in the atmosphere,even if Ln is rather more than (4-5)S,is still below the dust cleaning standa...
                本文对掘进巷道凿岩时压入式通风的风流结构及排尘作用进行了实验模型及现场试验研究。发现超出射流射程之外的空间存在着二次循环风流。测定和分析了二次循环流的特征及其通风排尘作用。研究了压入式通风风流的波动起伏特征及对通风排尘过程的影响。给出了利用二次循环流进行排尘通风时有关通风参数的经验公式,可作为生产和设计的参考。
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