instruction on operation and maintenance
...须知 instruction on how to service in the survival craft 操作及维护说明书 instruction on operation and maintenance 说明牌 instruction plate ..
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在安装，操作，维修及维护本产品前必须阅读本说明书，并且要理解包含的信息。
Please read this Manual carefully, and understand it well before installing, operating, repairing and maintaining the electrostatic precipitator unit.
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