... O / R On Request 请求 O&C Operation and Checkout 操作与验核 O.E. Original Error 原有误差 ...
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O&C Operation and Checkout 操作与验核 ; 原有误差
Directing of horizontal component magnetic variometer and directional checkout are important operation to guarantee quality of record.
水平分量磁变仪定向与定向检查是保证记录质量的一项重要工作。
The importance of high temperature power aging test and the operation principle of the digital circuit patrol checkout instrument is presented.
阐明高温功率老化输出检测的重要性，介绍“数字电路巡回检测仪”的工作原理。
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