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从人类工效学和劳动生理学角度，对背具的肩带宽度、内背架设置等进行了实验研究和实用效果评价。对背具的设计原则和生物力学配置提出了建议和改进方法
From the perspective of ergonomics and labor physiology, this paper carried out experimental research and practical evaluation on the shoulder strap width, inner backrest setting and so on. Proposed and improved methods for the design principles and biomechanical configuration of backware