Well-known structures and principle of construction machinery to Implement construction equipment trainingtraining before, specially crawler excavator ot wheel -loader.
熟知工程机械结构与原理，以前开展过工程机械技术培训，特别是履带式挖掘机或装载机。
2
Objective To study effect of racing training on 54 paraplegic ability of driving wheel chair.