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几种行业体力劳动强度调查天津市劳动卫生职业病防治院（３０００２０）王永钧，华晓东，李健，刘俊明我们按照国家标准（ＧＢ３８６９－８３）对我市机械、水泥、玻璃制造等行业的３０个工种的作业工人进行了平均劳动时间率及工作日内平均能量代谢率的测定，并做出体力劳...
Several labor intensity of the industry survey Tianjin labor and health occupational disease prevention hospital (300020) Wang Yongjun, Hua Xiaodong, Li Jian, Liu Junming We in accordance with national standards (GB3869-83) on the city machinery, cement, glass manufacturing and other industries 30 A working class of workers carried out the average labor time rate and the average energy metabolic rate within the working days of the determination, and make manual labor ...