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1.The engineer used a panel type ammeterto measure the current in the circuit.
工程师使用面板式电流表测量电路中的电流。
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2. The technician replaced the old panel typeammeter with a new one.
技术员用一个新的面板式电流表替换了旧的。
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3. The electrical engineer tested the paneltype ammeter before installing the new wiring.
电工在安装新线路之前测试了面板式电流表。