This is a detailed work scope based on the maintenance requirements, routes and resource requirements in terms of man-hours by skill, tools and material.
这是一个基于维护需求、作业路线以及技能工时、工具和材料资源需求的详细工作范围。
New wheels on the hydraulic mining machine disassembly reduced maintenance man put to use not only the physical labor, but also greatly improve the work efficiency, saving hours of 720 hours.
新式矿车轮对液压拆装机的投入使用不仅减轻了维修工的体力劳动，而且极大提高了工作效率，年可节约工时720小时。
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