2.14 Occur. Occurrence: an evaluation index for the frequency of individual failure causes. Refer to the grading level, as shown in Appendix 2 and Appendix 5
2.14 Occurrence.occurrence: an evaluation indicator of how often individual failures occur. The degree of scoring can be referred to, as shown in Annex II and Annex V.
2.14 occurrence: it is the evaluation index of the occurrence frequency of individual fault causes. The scoring degree can be referred to, as shown in Annex 2 and Annex 5<br>