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1.The engineer conducted a no-voltage protection test on the new circuit breaker.
工程师对新断路器进行了无电压保护测试。
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2.During the testing, the technician found that the device had a short circuit.
在测试过程中，技术人员发现该设备存在短路问题。
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3.The manufacturer insisted on conducting a no-voltage protection test before shipping the product to customers.
制造商坚持在将产品发往客户之前进行无电压保护测试。