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- respirable dust content 可吸入的粉尘量
- 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。
- 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。
- Winds with continental provenances frequently have a higher dust content than those with maritime provenances. 来自大陆的风比来自海洋的风通常具有更高的尘埃含量。
- 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。
- The gas evolution test method has the advantage that the effective coal dust content in green sand can be determined rapidly and accurately. 摘要发气量试验方法的优点是能够迅速和准确地确定型砂中有效煤粉的具体含量。
- The dust content in carbon dioxide gas is an important index used in the process step of carbonating decomposition in alumina production. 在氧化铝生产中,二氧化碳气体的含尘量是碳分生产工序中的一项重要指标。
- 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。
- Checking the hygiene conditions of the goods; examining whether the noise, dust content, radiation and emission of the goods in operation meet the requirements. 检查货物卫生状况;检测货物在运行状态下的噪声、粉尘含量、辐射以及排放物是否符合标准。
- 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。
- The system obtained high opinion because of its large conveying capacity, relative low chip dust content in conveying, steady running and small amount of maintenance. 该系统具有输送能力大，输送中造成的切片粉尘含量相对较低，运行可靠，维护工作量小等优点。
- Methods:The dust content in the reclaimed liquid with which bronchus-alveolus were lavaged were mensurated after being separated in 83 patients with the collier pneumoconisis 0 +. 方法 :选择 83例煤工尘肺 0 + 患者 ,对支气管肺泡灌洗回收液中粉尘进行分离 ,测定含量。
- The LCDM dust filter integrates the main pipe structure (for either inlet or outlet) and advanced diversion technology, therefore it can handle the gas with high dust content. LCDM型长袋低压离线脉冲袋式除尘器利用进、出口总管结构及先进的导流技术，因此除尘器不仅能处理一般含尘浓度的气体，而且能处理高含尘浓度的气体。
- Due to high dust content, DynaWave Scrubber did not attain the performance expected and WSA system also had some problems with structure and materials of key equipment. 由于烟气含尘量较高,动力波洗涤器未达到预期效果,WSA装置也存在核心设备结构不合理、材料选择有缺陷等问题。
- Using the data observed by an instrumented aircraft during a dust storm originated from thewestern part of Inner Mongolia of China on 10 June 1983,the particle spectra,dust content andthe CCN concentration are analysed. 根据对一次在阿拉善沙漠及其附近地区发生的沙尘暴天气下大气沙尘粒子的飞机观测资料,分析了3600m 以下各层的沙尘含量、粒子谱、云凝结核浓度;
- The dust content in plastic material directly affects the quality of its downstream products,such as film and injection molding piece,therefore,it is very important to control or reduce the dust content in plastic material. 塑料原料中的粉尘含量直接影响其下游制品如薄膜、注塑件等的质量,控制或减少塑料原料中的粉尘含量十分重要。
- The effective cost dust content of molding sand should be determined according to time factors such as the quality of the coal dust, casting size and thickness, pouring temperature, lacing sand or unit sand, and so on. 决定型砂中的有效煤粉含量应根据煤粉质量的优劣、铸件大小和厚薄，浇注温度、面砂或单一砂等因素。
