A larger harbor crane is often costly and maintenance charge is larger.
大型港口起重机往往价格昂贵，成本高且维护费用大。
Maintenance Services cover all activities necessary for trouble-free crane operation.
维修服务包括提供所有为保证起重机安全可靠的一切必要措施。
Maintenance Services cover all activities necessary for trouble-free crane operation.
维修服务包括提供所有为保证起重机安全可靠的一切必要措施。
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