他们是经过特别设计，人机工程学全面的研究。
They were specifically designed after a comprehensive study of ergonomics.
论述了人机工程学对林业机械产品设计的重要性，指出了在机具和林业设备设计中的人机工程学原则。
This paper discussed the importance of the man-machine engineering for forestry machine products design, and pointed out some design principle in design of forestry appliance and equipment.
人体工学：亦称人类工程学或人机工程学，设计机器、工具和工作环境以最好地适应人们的操作和行为的专业。
Human-factors engineering: or human engineering or human factors engineering profession of designing machines tools and work environments to best accommodate human performance and behaviour.
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