履带式挖掘机通过更换其前端机械附件可用于多种工作用途。
Crawler excavators are capable of a wide variety of work by changing a front attachment.
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。
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。
Well-known structures and principle of construction machinery to Implement construction equipment training training before, specially crawler excavator ot wheel -loader.
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