1)respirable dust呼吸性粉尘
1.Study on the determination in micro-amounts of free SiO _2 in respirable dust in the air of workplace by a method for XRD;作业场所空气中微量呼吸性粉尘游离二氧化硅含量的X线衍射测定研究
2.The characteristics of respirable dust in coal mine based on all working class基于全工班的煤矿呼吸性粉尘特点的研究
3.Under the two-phase(gas-particle) flow condition,the principle and characteristic of working of respirable dust impactor in the mine is studied by aerody.讨论了煤矿作业环境和大气环境下颗粒物的粒度分布及标准,分析了两种环境的特点,即相对来说煤矿作业环境的粉尘浓度高且其颗粒母质不同,进而根据空气动力学原理研究了在气体-颗粒两相流条件下的煤矿呼吸性粉尘冲击采样器的工作原理及特点,并且讨论了气体-颗粒两相流的特殊条件下,无纲量参数斯托克斯数Stk、雷诺数Re和颗粒物密度等一些参数对冲击采样器设计的影响,研究了这些参数与煤矿作业环境下的特殊条件之间的关系,根据环境特点对冲击采样器结构的改进进行了探讨。
英文短句/例句
1.Analysis of Whole Class Works Individual Workers Respirable Dust Monitoring and Dust-proof Countermeasures全工班个体呼吸性粉尘监测及防尘对策研究
2.Orthorhombic Experimental Study on Impact Factors of Respirable Dust Removal Efficiency of CSY-180 Hydraulic Dust CollectorCSY-180液动除尘器呼吸性粉尘除尘效率影响因素正交试验研究
3.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
4.The characteristics of respirable dust in coal mine based on all working class基于全工班的煤矿呼吸性粉尘特点的研究
5.Occupational Exposure to Dusts/Gases/Fumes Is Contributed to Chronic Obstructive Pulmonary Disease and Respiratory Symptoms职业接触粉尘和烟雾对慢性阻塞性肺疾病及呼吸道症状的影响
6.Study on Respiratory System Injury in Fur Processing Environments and Fur Dust Health Limit;皮毛加工环境所致呼吸系统损害及皮毛粉尘卫生标准的研究
7.Lung function and respiratory symptoms in sanitary workers;接触垃圾粉尘工人呼吸系统症状与肺功能改变的探讨
8.A Prospective Cohort Study on the Effect of Occupational Dust Exposure and Smoking on Mortality;职业接触粉尘、吸烟对死亡影响前瞻性队列研究
9.Dust-collecting devices adopted, absorbing dust, preventing air pollution.配置集尘装置，吸收粉尘，防止空气污染。
10.Primary Respiratory System Amyloidosis and Review of the Literature原发性呼吸系统淀粉样变性及文献复习
11.Effect of supervised breathing exercises on respiratory function in patients with coal workers pneumoconiosis督导呼吸训练对煤工尘肺患者呼吸功能的影响
12.The Relation between Respiratory Diseases and Heavy Metals in Air Particulate in Chengdu Area成都经济区居民呼吸道疾病与大气尘重金属元素的相关性
13.positive pressured, powered dust respirator气体供应式滤尘呼吸防护器
14.Comparative Study on Explosive Dust and Industrial Dust Explosion Characteristics炸药粉尘与工业粉尘的爆炸特性对比研究
15.Measurement of Dust Dispersivity is Very Important to Evaluate Dust Exposure Level粉尘检测中粉尘分散度检测重要性的探讨
16.Results The early common pathological change of alumina pneumoconiosis was the dust spots.结果粉尘沉积性尘斑是铝矾土尘肺最常见的尘性病变。
17.Post-market Reevaluation of the Effectiveness and Safety of Double-Coptis-Powder Injection in the Treatment of Children's Acute upper Respiratory Infection双黄连粉针剂治疗儿童急性上呼吸道感染的上市后再评价研究
18.Clinical implications of serum amyloid A level in patients with obstructive sleep apnea阻塞性睡眠呼吸暂停患者血清淀粉样蛋白A水平研究
相关短句/例句
time-weighted average admissible concentration (PC-TWA)呼吸性粉尘浓度
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).方法:运用粉尘采样器采集煤尘,计算作业场所瞬时总粉尘浓度(PC-STEL)和时间加权平均呼吸性粉尘浓度(PC-TWA)。
3)whole class works individual workers respirable dust全工班个体呼吸性粉尘
1.To explain whole class works individual workers respirable dust monitoring systematic monitoring program、monitoring process and effect analysis,proposed targeted dust-proof countermeasures.阐述了全工班个体呼吸性粉尘监测系统性的监测方案、监测过程及效果分析,提出了有针对性的防尘对策。
4)respirable coal dust呼吸性煤尘
1.Study on the dose-response relationship between respirable coal dust and pneumoconiosis;呼吸性煤尘与尘肺的剂量-反应关系分析
2.Methods:According to GB16248-1996"Health Standard for respirable coal dust in the air of workplace",we determined the concentration of respirable coal dust; According to GB5748-58"Method of determining the total dust concentration in workplace",total concentration was determined.目的 :呼吸性煤尘测试方法是否与总尘的测试方法所得的结果一致。
5)respirable dust可呼吸的粉尘
6)respirable aerosol mass monitor呼吸式粉尘监测仪
延伸阅读
呼吸性粉尘呼吸性粉尘respirable dust huxixing fenehen呼吸性粉尘(respirable dust)粒径在5拜rn以下的能进人人体肺泡区的颗粒物。它是引起尘肺的病因。尘粒在呼吸系统的沉积分为三个区域，即上呼吸道区(包括鼻、口、咽和喉部);气管、支气管区;肺泡区(包括无纤毛的细支气管、肺泡管、肺泡管人口、肺泡和肺泡囊)。一般认为，空气动力径在1如m以上的尘粒大部分沉积在鼻咽部，10拌m以下可进人呼吸道深部，沉积在上呼吸道的最小粒径约为1拌m。在肺泡内沉积的粉尘大部分在5拌m以下，2拼m以下的尘粒较多，其上限粒径约为10拌m，但纤维微粒稍有不同，长200料m，直径为1拜m的纤维约有1%沉降于肺部。 各种粒径的粉尘在呼吸系统各部位的滞留率如图1。 根据尘粒在呼吸系统的滞留情况，1952年英国医学研究委员会(BMRC)研究了模拟人的呼吸道内粉尘的滞留状况，提出了尘粒在肺内的沉积率(表1)。1959年在南非约翰内斯堡举行的第四次国际尘肺会议公认了这一研究结论。 100r一~一-~一一-—一万尸又)洲 80卜人\了。~1 求60汽今七、月‘p他入7{ 哥}汉z入入7{ 盛._}丫入才勺1 孟40七~~丫洲入入I一 藉刊入气管丫;人丈丫一 20反只、支气管/\卜勺乙入{ OL~—~一之飞全正又二汇二二一~‘二全二匕口 0 01 0.1 1 10 100 空气动力径小m 图1不同空气动力径粉尘在 呼吸系统各部位的滞留率表1英国医学研究委员会提出的尘在肺内的沉积率镖黯仁{佘日禾仁片片1961年美国原子能委员会(AEC)将呼吸性粉尘定义为能通过没有纤毛肺组织的那部分粉尘，并规定了采样器分离尘粒的性能应符合表2的规定。 表2美国原子能委员会规定的呼吸 性粉尘采样器分离尘粒性能赢器踢斜针未采生 1968年美国政府工业卫生医师会议(ACGIH)对AEC的规定进行了修正，将小于或等于2产m尘粒通过分离器百分数改为90%，并提出了呼吸性粉尘的浓度闭限值(TLV)的计算公式。 呼吸性粉10 尘浓度一呼破履骊互三石澳百量百石蔽不厄 上式的呼吸性粉尘浓度是指通过具有下列特征的粒子分离器(表3)所得到粉尘浓度。粒子分离器选用旋风预捕集器。
