“设备保护级别”的概念、定义、翻译、参考文献-科学参考

单词	设备保护级别
释义	设备保护级别 Encyclopedia 工学防爆电气设备释 equipment protection level; EPL设备保护级别用于表示防爆电气设备的固有点燃风险的不同，并区别爆炸性气体环境、爆炸性粉尘环境和煤矿有甲烷的爆炸性环境的分级。
随便看	database machine database management automation database management system database management system, DBMS database marketing database middleware database normalization designing database of engineering survey database of geological survey database of invasive alien species in China database of mineral resources potential evaluation database of national major urban environmental geological survey database of regional geochemical database of surveying and mapping datum data base of values and facts database operation managemen database outsourcing database performance evaluation database performance tuning database physical structure design Database Publications database publishing database query monitor database recovery database reliability

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。