4期劳动保护
Four-stage labor protection
按劳动力贡献分配
distribution according to labor force contribution
半劳动力
one able to do light manual labour only
Berlei
北京科技大学土木与环境学院；江西省劳动与社会保障厅
Civil and Environment Engineering Dept.
University Of Science and Technology Beijing
北京劳动保障职业学院学报
Journal of Beijing Vocational College of Labour and Social Security
北京市劳动保护科学研究所
Beijing Institute of Labor Qrotection
Beijing Municipal Institute of Labour Protection
beijing
比较劳动生产率
Comparative labor productivity
编制外劳动用工
employment of external staff
不定期劳动合同
Non-termly labor contract
不和谐劳动关系
unharmonious labor relations
采煤劳动强度
labor intensity of coal mining
长期劳动需求弹性
Long-run labor demand elasticities