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dust concentration detecting 粉尘浓度监测
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
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。
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。
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。
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。
In the tracking-mode, the instrument generates an increasing or decreasing rate of beeps, depending on the gas concentration detected. 在检测模式下，仪器根据气体含量来增加和减少频率不同的嘟嘟声。
When the intake air volume is low (the temperature of the exhaust gas is low) current flows to the heater to heat the sensor for accurate oxygen concentration detection. 当进气量低时(废气温度低),就向加热器供电,加热传感器以精确检测氧浓度。
Most work with insulation board is indoors and is likely to produce dust concentrations in the atmosphere exceeding the Control Limits. 大部分绝缘板的拆除作业均在室内进行，且产生的环境粉尘浓度很可能超出“控制限度”。
The motor car disappeared in eddy of dust. 汽车在一片扬尘的涡流中不见了。
The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
By material balance equation, the dust concentrations measured at various directions of various testing spots of the louver board are determined, from wh... 据此,提出以半敞开方式排放烟气烟尘的除尘系统烟气烟尘浓度测试方法,即侧向间接测试法。
The test results show that dust concentrations in tunneling working face can be satisfied with the national health standard by a high efficient deduster. 试验表明,采用高效除尘器对巷道凿岩工作面进行就地净化循环通风,能使工作面粉尘质量浓度符合国家工业卫生标准。