飞机牵引车是军用和民用机场调度飞机必不可少的一种专用地面服务设备。
Aircraft towing tractor is a special device to dispatch airplanes in the airport.
目前用于路面及机场道面摩擦系数检测的设备数量众多，类型各异。
Nowadays, there are many types of equipment to measure the friction of pavement.
目前用于路面及机场道面摩擦系数检测的设备数量众多，类型各异。
Nowadays, there are many types of equipment to measure the friction of pavement.
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