核 。 中文名称 役前检查 英文名称 pre-service inspection 定义 在核电厂投入运行前，按照在役检查大纲规定的检查范围进行的一系列无损检测和试验。采用的方法主要包括目视、渗透、超声、射线和涡流检测等。 应用学科 电力（
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The defects at the welding areas of blades of working impellers of primary pump connecting the cover plate have been found during pre-service inspection of Unit 1 at JNPC.
发现主泵工作叶轮的叶片端面与盖板连接处的焊接区域有缺陷。
The pre-market companies, sales, after-sales service 24 hours a day response and the establishment of a regular inspection after-sales service network, let us quality service at your side forever!
公司对售前、售中、售后服务24小时全天候响应，并设立了售后服务定期巡检网点，让我们优质的服务永远在你的身边！
Railway safety pre-warning system is a management information system providing assistant decision-making service for all levels of safety inspection department in railway enterprise.
铁路安全预警系统是向铁路企业安全监察部门提供辅助安全管理决策服务的管理信息系统。
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