这意味着“审核周期”和“证书周期”是不同的。
This means the "audit cycle" and "certificate cycle" are different.
本系统的核心功能是对证书生命周期的管理，所以也将其称为公钥证书管理系统。
The key function of this system is management of certificate lifecycle, so also call it public key certificate management system.
按有关规定及标准对所有计量仪器作周期检查和校准，完成并保存相关计量仪器校验记录和计量鉴定证书；
According to the relevant regulations and standards to inspect and calibrate all measuring instrument, complete and save the relevant calibration record and appraisal certificate;
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