Mining draglines and bucket wheels, excavators and airlines, crushers and ship lifts, dredgers and dozers - these are just some of the mega machines that drive multi billion dollar industries. Breakdowns can be catastrophic so it's up to the skill and experience of Mega Mechanics to keep the wheels in motion, the gears turning and the hydraulics pumping. Mega Mechanics is a new...$巨型机器的医生
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