Well-known structures and principle of construction machinery to Implement construction equipment training training 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。
Objective To study effect of racing training on 54 paraplegic ability of driving wheel chair.
目的提高截瘫患者驱动轮椅的能力。
Objective To study effect of racing training on 54 paraplegic ability of driving wheel chair.
目的提高截瘫患者驱动轮椅的能力。
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