周期检定 meaning in English
periodic vertification
Examples
- Work out plans for periodic calibrating instrument . arrange to send instrument calibrated by official department
编制计量器具周期检定计划，申报、筹建自检项目，外送强制检定器具。 - Inspection equipment in service must be examined or calibrated periodically according to specifications , and used within the term of validity of examination or calibration
在用检测设备，必须按规定周期检定或校准；在检定和校准的有效期内使用。