论文部分内容阅读
大量的流行病学研究表明石棉肺发病与接触石棉尘量密切相关,但长期接触大量粉尘的人群中,只有部分工人患肺部疾病,此外,X线异常的严重程度与吸入石棉的估计量之间表明无密切联系。这些事
A large number of epidemiological studies have shown that the incidence of asbestosis is closely related to exposure to asbestos dust but only some of the workers exposed to large amounts of dust are suffering from lung disease. In addition, the severity of X-ray abnormalities is related to the estimated amount of asbestos inhaled Between shows no close ties. These things