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- Keywords coal mine dust;dust concentration;metal and metalloid element;coal worker's pneumoconiosis; 煤矿粉尘;粉尘浓度;金属与类金属元素;煤工尘肺;
- mine dust concentration 矿尘浓度
- Micronucleus test in vicia foba root tips was performed for 10 mine dust tamples. AFB 1 and 15 fungal extracts. 应用蚕豆根尖微核技术对10份矿尘样品、黄曲霉毒素B_1(AFB_1)和15份真菌提取物进行诱变性研究,结果有10份矿尘、AFB_1和5种真菌提取物能明显诱发蚕豆根尖细胞微核率的增高;
- The seheme has preceptorial function to inducing the dust concentration and improving the job condition. 本方案对于降低综放工作面粉尘浓度,改善工人作业环境具有指导作用。
- Sublevel Mechanized caving method shows the characteristics of high out-put,more dust sources,high dust concentration and difficult to control. 煤矿综采放顶煤工作面开采强度大、产尘尘源多、粉尘浓度高，因而对尘毒的治理难度大。
- In the process of determination, Excel tables are used to calculate dust concentration to avoid man-made errors and improve accuracy. 为减少人为误差 ,我们采用Excel电子表格的数据处理能力 ,对测定的粉尘浓度进行统计计算 ,提高其准确度。
- The new type fume analog equipment can produce turbid gas and its velocity of flow and dust concentration can be known and adjusted. 新研制一种烟气模拟装置,能产生已知流速和含尘浓度的混浊气体,且浓度和流速可调。
- The optimal lectotype of entity structure in the condition of flue gas with high specific resistivity and high dust concentration has been studied. 研究了高比电阻和高含尘浓度烟气条件下本体结构的优化选型;
- The settled dust on the walls of the tunnel should be moistened with sticking agent.Only in this way,could the dust concentration in the whole tunnel be effectively controlled. 对巷道周壁的粉尘采用喷洒粘尘剂固尘，才能有效地降低整个巷道的粉尘浓度。
- Dust concentration from driving aspect to blowing holeis from high to low and presents vertical distribution.Pellet in laying blowpipe section presents horizontal distribution. 纵向分布呈现掘进面至送风口浓度曲线由高渐低，风管铺设段呈水平分布，提示风管铺设段隧道内污染物排出顺利。
- The research conducted a measurement study on the dust concentration in a 1.2L Hartmann Bomb,analyzed the measurement data,and finally obtained the time-dependent curves of dust concentration at different heights in a 1.2L Hartmann Bomb. 针对1.;2 L哈特曼装置上的粉尘浓度进行了测量研究;并对测量数据进行了分析讨论;得到了1
- Prevention and Control of Coal Mine Dust 矿井粉尘防治技术探讨
- It is specially suitable for dust removal of tip lorry. Its operation indicates that the dust concentration at post is 3.8mg/m 3,the discharge concentration is 40mg/m 3 and the dust control efficiency is 96%. 运用表明 :岗位粉尘浓度 3 .;8mg/m3;外排粉尘浓度 40mg/m3;除尘效率 96%25。
- I think your plans will chime in with mine. 我想你的计划会同我的相吻合。
- Development of a New Mine Dust Collector 新型矿用除尘器的研究
- Weighing filtration membrane is often used to get the dust concentration of environment.However,this method is discommodious and can not get the instantaneous transformation of dust concentration. 环境粉尘浓度的测定一般使用滤膜称重方法测得,该方法费时费力,且不能得到瞬时粉尘浓度的变化。
- Assessnent of risk for tin mine dust in Guangxi 广西锡矿矿尘致矽肺的危险度评价
- Weighing filtration membrane is often used to get the dust concentration of environment.However, this method is discommodious and can not get the instantaneous transformation of dust concentration. 摘要环境粉尘浓度的测定一般使用滤膜称重方法测得，该方法费时费力，且不能得到瞬时粉尘浓度的变化。
- Direct Mensuration Method of Mine Dust 矿井粉尘直接测定方法
- The relationship between the dus t and MnO 2 concentration in electric welding circumstance is discussed in orde r to calcu late the concentration of MnO 2 from dust concentration. 为探讨电焊作业环境中粉尘与二氧化锰浓度的关系,以便于用粉尘浓度推算出二氧化锰浓度。
