应用人类工程学的理论，对绞盘机司机手动操纵力、脚踏操纵力的合理数值进行了分析；并根据在林区的实际测试数据，计算分析出绞盘机司机耳旁噪声的安全限值。
This paper uses the principles of ergonomics to study the operating force of both hands and feet needed by a winch operator as well as tolerable safe noise levels.
转向离合器为湿式、多片粉末冶金摩擦片、弹簧压紧、液压分离。制动器为湿式、浮动、双向带式、脚踏式机械操纵。
Steering clutch: multiple-disc oil powder metallurgy disc compressed by spring. hydraulic operated. brake is oil two direction floating band brake operated by mechanical foot pedal.
转向离合器为湿式、多片粉末冶金摩擦片、弹簧压紧、液压分离。制动器为湿式、浮动、双向带式、脚踏式机械操纵。
Steering clutch: multiple - disc oil powder metallurgy disc compressed by spring. hydraulic operated. brake is oil two direction floating band brake operated by mechanical foot pedal.
戴夫·托马斯：直升机有四个主要的控制器：脚踏板、总距操纵杆、周期变距操纵杆以及气门。
Dave Thomas: A helicopter has four main controls: foot pedals, collective pitch lever , cyclic, and throttle. The foot pedals control the tail rotor.
戴夫·托马斯：直升机有四个主要的控制器：脚踏板、总距操纵杆、周期变距操纵杆以及气门。
Dave Thomas: A helicopter has four main controls: foot pedals, collective pitch lever , cyclic, and throttle. The foot pedals control the tail rotor.
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