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- 三级事故<涉及危险品的数量可能造成大灾难 level Ⅲ incident
- 国家资源委员会的委员们后来把三哩岛的事故定为9级事故。 The NRC staff was later to classify the accident at Three Mile Island as a Class Nine accident.
- 一级事故<出事故的危险品能容易地控制 level I incident
- 法院认为，可以实际引起任何环境破坏的9级事故发生的机会是可以忽略不计的。 The court reasoned that the chance that a Class Nine accident would actually cause any environmental damage was negligible.
- 事故 accident
- 三级SBR Three-stage SBR process
- 三级网 extinguishment
- 1980年，核监视委员会按照《国家环境政策法》改变了它在9级事故方面的一般处理观点。 In 1980, NRC changed its position concerning generic treatment of Class 9 accidents under NEPA.
- 三级机 Leve13
- 三级钢 third-class steel
- 关于施工企业三级成本核算体系会计科目设置方案的优化 The Optimization of Scheme in Accounting Headings of Three- step Cost Accounting System in Construction Enterprises
- 三级防雷 Three-level lightning protection
- 三级康复 Three-stage rehabilitation treatment
- 三级圆形平台 three-tiered circular terrace
- 三级甲等 class-3grade-A
- 三级层序 third-order sequence
- 三级递进 go forward by three steps
- 三级除尘 3-stage dust-removal
- 三级医院 3rd Class Hospital
- 三级干预 tertiary intervention
