您创建了零件数据库，并设置了维护窗口，配置了异常状况下的电子邮件联系方式。
You created a parts database. You also set up a maintenance window and configured an E-mail contact in case something goes wrong.
机器的程序需要用最新的零件修改意见进行正确设置，工人也需要知道目前生产计划的进展情况和机器的运转数据，这样他们才知道何时安排维护保养。
Machines need the correct program with the latest part revisions, while people need to know the current schedule status as well as machine performance data, so they know when to schedule maintenance.
机械师设置和操作各种机床，切割或研磨金属，塑料或其他材料来制作或修改精确尺寸的零件或产品。
Machinists set up and operate a variety of machine tools to cut or grind metal, plastic or other materials to make or modify parts or products with precise dimensions.
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