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- Abstract: An experimental method for preparing respirable dust filter samples using a selfmade standard dust generator was introduced. 文摘:介绍了自制的标准呼吸性粉尘发生装置制备含石英呼吸性粉尘滤膜样品的实验方法。
- An experimental method for preparing respirable dust filter samples using a selfmade standard dust generator was introduced. 介绍了自制的标准呼吸性粉尘发生装置制备含石英呼吸性粉尘滤膜样品的实验方法。
- This paper describes the research on the use of sonic coagulation mechanism in spray to improve the removal efficinecy of dust, especially of respirable dust. 本文论述了利用声凝聚机理提高喷雾降尘效果,特别是对呼吸尘的降尘效果的研究过程。
- This innovational device could be used to block up the respirable dust produced in the process of coal mining to diffuse to the operators? working area. 此革新装置的原理和作用是以形成透明的“空气幕墙”将采煤司机工作区与采煤机截煤区分隔,阻止呼吸性粉尘向司机处扩散。
- The laboratory tests and underground application show that this dust suppression technique has re-markable effect on the total dust,especially on the respirable dust. 实验室试验和井下使用结果表明，这种喷雾降尘技术对总粉尘，特别是对呼吸尘具有显著的降尘效果。
- Respirable dust has the distinctive features of tiny in particulate diameter, long-suspending and invisible to naked eyes.It is easy to be deposited in pulmonary alveoli causing CWP. 呼吸性粉尘粒径小、悬浮时间长、肉眼不可见，极易被吸入人体的肺部并沉积于肺泡区内，随著沉积量的增加，可引发尘肺病。
- Basic principle, experiment condition, operating process, method and steps of X-ray diffraction method to determine free silica content of respirable dust in mines are introduced in this paper. 本文介绍了应用X射线衍射仪测定矿山呼吸性粉尘中游离二氧化硅含量的基本原理、实验条件以及操作过程、方法步骤等。
- By investigation found that our existing methods of dust spray equipment and the dust is the common problem of dust control efficiency is not high, respirable dust and dust all settlement rate is low. 本文通过调研发现,我国现有的喷雾降尘方法和降尘设备普遍存在的问题是降尘效率不高,呼吸性粉尘和全尘的沉降率低。
- Test Method for Respirable Dust in Workplace Atmospheres 工作场所大气中可吸入灰尘的试验方法
- Keywords Respirable dust Air curtain Dust preventing curtain; 呼吸性粉尘;风帘;隔尘效率;
- whole class works individual workers respirable dust 全工班个体呼吸性粉尘
- 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。
- The car raised quite a dust as we drove off. 我们走时车子扬起了一阵尘土。
- A filter traps dust from the air. 过滤网可存住空气中的尘埃。
- How many enemies bit the dust in the battle? 在这次战斗中打死了多少敌人？
- The city lay in the dust after the battle. 战斗结束后，全城成为废墟。
- The dust on the shelf show up in the sunlight. 在阳光照射下能看见架子上有灰尘。
- He flicked away the dust with a cloth. 他用一块布拂去灰尘。
- Dust the repair to prevent adhesion to outer cover. 清整修补处以防与外胎粘连。
