Ensure sound grounding of the equipment and that shall be tested with an appropriate instrument by a specialized technician.
必须确保设备接地良好,而且需要经过专业人员运用恰当的仪表进行检测。
This instrument used to take 12 hours to calibrate by a highly trained technician.
过去,训练有素的技术人员也要花12个小时才能完成该仪器的校准。
This instrument used to take 12 hours to calibrate by a highly trained technician.
过去,训练有素的技术人员也要花12个小时才能完成该仪器的校准。
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