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you xin xin shi zai ren wei zhua fang chen jian chi bu xie
Author(s): 
Pages: 8+37
Year: Issue:  1
Journal: Occupational Health and Emergency Rescue

Abstract: <正> 湖南七宝硫铁矿是个有30余年开采历史的多金属矿山,目前开采硫铁矿石、选铜。1974年以来,随着矿山的扩建,工人数量的增加,该矿重视了工业卫生工作,切实落实一系列措施,从而保障了工人的健康。该矿在原来的基础上,对井下巷道进行了较大的技术改造,通风采用中央式抽出和机械通风(双翼对角式),主扇由30瓩改为40瓩,使井下每个人有6立方米的新鲜空气。采取综合防尘措施后,重点对几个主要
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