A register is maintained within the contract file to ensure that the revision status of client's specifications is recorded and controlled.

登记薄保留在合同文件中，以对客户规范的变更情况进行记录和控制。

youdao

A 1:1 matched cohort (control group) was created based on primary or revision status, length of fusion, diagnosis, and age.

按1：1选择配对群体(对照组)，配对条件包括初次或翻修手术、融合节段长度、诊断和年龄。

youdao

In November 2013, the 37th Session of the UNESCO General Conference decided to begin a consultation process that may result in revision of the original text of the Recommendation on the Status of Scientific Researchers.

UNESCO: UK National Commission for UNESCO - UK submission to the UNESCO review of the Recommendation on the Status of Scientific Researchers: key issues for inclusion