同时对他们进行维修和维护也很困难。
安装时要使过滤器和阀门可以接近进行维修和维护。
The valve should be installed so that the strainer and the valve are accessible for service and maintenance.
负责CNC机床和其他设备的电气维修和维护工作。
Be responsible for electrical repairing and maintenance for both CNC machines and other equipments.
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