煤层注水是降低矿井粉尘浓度的有效措施之一。
The seam water injection is an effective measure to control coal dust concentration.
水泥厂生产粉磨加工过程多，环境空气中含粉尘浓度高。
Cement grinding process production, environmental air contains high concentrations of dust.
经实践证明，这些措施是目前降低粉尘浓度的有效途径。
Practice has proved these measures to be the effective way for decreasing of dust density.
说明空气中呼吸性粉尘的含量随着粉尘浓度的增高而增加。
Respiratory dust content in air I creases with raising of dust concentration.
最大爆炸压力和最大压力上升速率随粉尘浓度的增加而线性增加。
And the maximum explosion pressure and maximum rate of pressure rise vary approximately linearly with the concentration.
对实验数据进行二维三次插值处理，获得直观的粉尘浓度分布等值线图；
The intuitive contour lines of the concentrations were acquired through the data processing by cubic interpolation.
在所考察的实验条件下，粉尘浓度对于玉米粉尘火焰传播速度的影响不大。
For the present experimental conditions, it is found that the flame propagation velocity is a weak function of dust concentration in cornstarch dust clouds.
含尘滤料过滤阶段，测试了入口粉尘浓度、过滤速度等对过滤压力损失的影响。
Under non-stationary filtration condition, firstly the study about the effect of particle concentration, filtration velocity and filtration time on pressure drop was taken.
当传感器发现粉尘浓度达到了临界水平，就有一定的电荷促使该材料发出除尘波越过其表面。
Sensors detect when dust concentrations reach a critical level and then an electric charge energises the material sending a dust-repelling wave across its surface.
粉尘浓度和湍流速度对粉尘爆炸猛烈程度和粉尘云最小着火能的测试有很大影响。
The dust concentration and velocity of turbulence have significant effects on the level of explosion and measurement of the minimum ignition energy of dust clouds.
该厂自1965年采用防尘措施以来，粉尘浓度有了显著降低，测尘点合格率遂年增多。
Since the factory took measures to prevent dust in 1965, the ust concentration has been reduced greatly.
本文对338名棉工进行了呼吸道反应调查。并测定了车间空气中粉尘浓度及内毒素浓度。
The respiratory response of 338 cotton workers was surveyed together with determinations of air concentrations of inhalable dust and endotoxin in the spinning preparatory workplaces.
本文综合前向小角光散理论及消光原理，提出一种测量粉尘平均粒径及粉尘浓度的光学方法。
This paper presents a method of measuring the particle mean size and dust concentration by small angle near forward light scattering optics and the extinction theory.
结果武钢粉尘总合格率为86.35%，其中轧钢系统的平均粉尘浓度合格率最高，炼铁最低；
Results The total compliance rate of dust is 86.35%, among them the average dust concentration in rolling plants is the lowest and in iron-smelting plants the highest.
方法调查70例在职铸造工，分别测定其10年前后肺通气功能，同时监测作业环境的粉尘浓度。
Methods the pulmonary functions of 70 founders were followed up in a period of 10 years, the worksite dust concentrations were also monitored.
本文根据粉尘的光学性能、电离性能、穿透性能提出了三种不同类型的粉尘浓度检测、报警设备。
This paper introduces three types of concentration-detecting and alarm systems based on the optical, ionizing and penetrating properties of flour dust.
通过严密的理论推导，得出了不同粉尘浓度条件下发动机的磨损与空气滤清器滤清效率的经验公式。
In this study, an empirical equation is derived which describes the relationship between engine wear and air cleaner efficiency under different dust con-centrations.
目的监测煤矿井下粉尘浓度及组成成分，研究其与煤工尘肺的发病关系，为尘肺病防制提供科学依据。
Objective To monitor coal mine dust concentration and composition, study the incidence of coal worker's pneumoconiosis, and provide a scientific basis for pneumoconiosis control.
光透射的方法在测量高浓度粉尘时效果较好，但是在粉尘浓度较低时，它便无法得到较好的测量结果。
Though it effect well when powder concentration is high, it cannot get a good measurement result when the concentration is low.
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.
根据存在的问题从两个方面进行了改造：采用多重管重力掺混技术，降低气相粉尘浓度，减少静电积聚；
The treatment was carried out in two parts: By using of multiple-pipe gravity mixing technology, dust concentration of vapor phase was reduced, and accumulation of static electricity decreased;
根据监控数据显示，今年伦敦市空气粉尘浓度第36次达到危险临界值，成为了欧洲污染最严重的城市之一。
The City of London has been found to be one of the most polluted places in Europe after monitoring equipment recorded dangerous levels of minute particles for the 36th time this year.
选择非石雕功课工人60人作为对照组：运用噪声仪测定工作情况噪声以及粉尘采样器测定粉尘浓度状况。
Choose a stone homework workers 60 people as control group: use noise meter measuring work environment noise and dust sampler determination of dust concentration.
同时，静电放电产生的火花能引燃袋式除尘器中的可燃粉尘，当粉尘浓度达到一定界线时还可能发生爆炸。
At the same time, electrostatic discharge generated sparks can ignite flammable in the bag filter dust, dust concentration reaches a certain line when the explosion may occur.
该设备操作方便、装机功率小、生产率高，曲粉质量符合酿酒工艺要求，粉尘浓度、噪音指标均达国家标准。
The quality of the treated starter powder was in accord with liquor-making requirements and dust concentration and noise indexes met national requirements.
该设备操作方便、装机功率小、生产率高，曲粉质量符合酿酒工艺要求，粉尘浓度、噪音指标均达国家标准。
The quality of the treated starter powder was in accord with liquor-making requirements and dust concentration and noise indexes met national requirements.
应用推荐