Do you maintain records of calibration for each unit of measurement and test equipment?
你是否有保持校准每个单位的计量和测试设备记录？
Instrument and equipment operating procedures, calibration and maintenance, records.
仪器和设备操作规程，验证和维护保养，记录。
Instrument and equipment operating procedures, calibration and maintenance, records.
仪器和设备操作规程，验证和维护保养，记录。
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