secondary calibration meaning in Chinese

二级刻度

Standard practice for secondary calibration of acoustic emission sensors
声发射传感器的二次校准标准规程
Practice for secondary calibration of airborne particle counter using comparison procedures
用比较程序进行气载颗粒计数器二次校正惯例
Non - destructive testing - acoustic emission inspection - secondary calibration of acoustic emission sensors
无损检测声发射检测声发射传感器的二级校准
Standard practice for secondary calibration of airborne particle counter using comparison procedures
用比较法对空中游离微粒计数器进行的二次校正的标准实施规程