不要忽视接地型插头的安全作用。
Do not defeat the safety purpose of the grounding type plug.
严格按操作要求使用仪器，本仪器采用单相三线插头，连接地线以确保用电安全。
Operation rules should be strictly followed. The instrument ADAPTS with a mono phase three pin plug, which connects to the earth for safety.
不要在一个接线板上插满插头，那样做不安全。
Do not insert too many plugs in a connection panel, as it is not safe.
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