矿井粉尘,mine dusts
1)mine dusts矿井粉尘
英文短句/例句
1.The seam water injection is an effective measure to control coal dust concentration.煤层注水是降低矿井粉尘浓度的有效措施之一。
2.CONTROL OF POWDER DUST POLLUTION IN THE UNDERGROUND CRUSHING STATION OF A COOPER MINE IN ANHUI PROVINCE安徽某铜矿井下破碎站粉尘污染治理
3.Mine dust seriously threats the mine safety production and the staff health.粉尘严重威胁矿井安全生产和职工身体健康。
4.The Study of Suppressing Thick Road Dust in Tong Lu Shan Mine;铜录山矿运输道路粉尘抑尘控制研究
5.Application and research of the cartridge dust collector in mine dust removing滤筒除尘器在矿井除尘中的应用与研究
6.Reliability of water supply network for mine dust-proofing based on GO methodologyGO法分析矿井防尘供水管网的可靠性
7.Situation and Development Direction of Dust Prevention and Treatment for China Coal Mine中国煤矿粉尘防治的现状及发展方向
8.Analysis on mine coal dust explosion danger degree base on normal fuzzy function基于正态模糊数的矿井煤尘爆炸危险度分析
9.Optimal Design of Mine Water Supply Network for Dust-proofing Based on Improved Genetic Algorithm基于改进遗传算法的矿井防尘供水管网优化
10.Study on fire modification of fly ash and treatment of mine wastewater火法改性粉煤灰及处理矿井水的研究
11.According to the dust pollution of open-pit mine, the measures of preventing the dust pollution were raised in order to clean environment in mining area.通过分析露天矿采场粉尘的污染情况，提出了粉尘污染治理的措施，达到了清洁矿区环境的目的。
12.Key Technology of Dust Explosion Prevention and Treatment of High Sulfur Metal Mine and its Engineering Applications高硫金属矿井矿尘爆炸防治关键技术及工程应用
13.APPLICATION OF EXCEL INTO STATISTICS OF CONCENTRATION OF RESPIRATORY DUST IN A MINEExcel在矿山呼吸性粉尘浓度统计中的应用
14.Effect of smoking and dust exposure on pulmonary ventilation function;煤矿工人吸烟与粉尘暴露对肺通气功能的影响
15.Exposures to Silica Mixed Dust and Cohort Mortality Study in Tin Miners;锡矿作业工人粉尘接触和队列死因分析
16.Soil contamination by magnesite dusts:Its mechanisms and phytoremediation菱镁矿粉尘污染土壤机理及其植物修复
17.Dust Controlling of Belt Conveyers in Concentrating Mills关于选矿厂皮带运输机粉尘控制的探讨
18.Selection and Application in Bag Precipitator in Slag Milling System矿渣粉磨系统袋式除尘器的选型及应用
相关短句/例句
dusty mine多尘矿井
3)mine dust-proofing矿井防尘
1.Reliability of water supply network formine dust-proofing based on GO methodologyGO法分析矿井防尘供水管网的可靠性
4)mine dust removing矿井除尘
1.Application and research of the cartridge dust collector inmine dust removing滤筒除尘器在矿井除尘中的应用与研究
5)coal mine dust煤矿粉尘
1.To monitor dust in coal mines for evaluation on dust hazards and assay its elements in order to provide science evident for exploring the dust occupational injury mechanism,coal mine dust were sampled by dust sampler for measuring the admissible level under short-term contact (PC-STEL) and the time-weighted average admissible concentration (PC-TWA).目的:监测煤矿井下粉尘浓度,评价煤矿粉尘危害水平;分析煤尘的组成成份,为探讨粉尘性职业损害机制提供依据。
6)Mineral dusts矿物粉尘
1.The changes in amounts of bacterium and consumed glucose (GLU) and 14 kinds of main cations after the action of mineral dusts with escherichia coli and staphylococcus epidermidis were determined.测定了矿物粉尘与大肠埃希菌及表皮葡萄球菌作用后的细菌数量、葡萄糖(GLU)消耗量及14种主要阳离子的浓度变化。
2.Surface properties, free radicals released by mineral dusts or stimulated phagocyte play important roles in causing ce.矿物粉尘具有很强的生物活性,对人体健康、生物效应有其特有的生理作用。
延伸阅读
高山地区矿井通风高山地区矿井通风mine ventilation in high elevation areagaoshan diqu kuangjing tongfeng高山地区矿井通风(mine ventilation in highelevation area)向海拔千米以上地区的矿井通人新鲜空气的过程。空气温度、大气压力随着海拔高度而变化。海拔每上升100m，气温下降约0.65C，气压下降约0.93325kPa。不同海拔的气温、大气压力可按下式计算:th~t。一月△H/100 P卜~P，一a△H/100式中t、、P。分别为在海拔高度为H米处的气温，C和气压，kPa;ta、P。为附近气象台站的年平均气温，C和年平均气压，kPa;△H为海拔高度为H处与附近气象台站间的高度差，m;口为气温梯度，夕一。，5一0.7C/10om;a为气压梯度，a~6一8(0.799932一1 .066576)kPa/100rn。随着海拔高度的增加，空气重率则降低。即y一y0(1一H/443。。)5256。式中孔为标准状态下的空气重率，kg/m3。空气重率的降低引起通风风阻、通风阻力、扇风机的全压以及扇风机电机输人功率下降，但风量保持恒定，因此，扇风机效率不随海拔高度变化。以上参数可按下式计算:R一KrR。;h二Krho;H一KrH、Q=Q。;N=K:N。;7=夕。，式中R。、h。、H。。、Q。、N。、军。为标准状态下的风阻、阻力、全压、风量、功率和效率;R、h、H、Q、N、7为海拔高度为H处的风阻、阻力、全压、风量、功率和效率。、r一哥一(‘一H/“300，525弓式中K，为高程校正系数。因此，在通风设计时，不需要进行高程校正，高山矿井扇风机在实际运转时，其风量不变，风压降低，其值为设计风压乘以高程校正系数K二。 (赵梓成)
