同时对他们进行维修和维护也很困难。

They can be hard to get at to repair and maintain.

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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.

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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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