电力行业继电保护装置运行相关规程，是规范类资料，是220-750kv的。-Power industry protection devices related to the operation procedures are standardized categories of information, is 220-750kv of.

fluent中不用nist调用，而用这个文件加载co2的物性，计算更快更准-fluent in not nist call, and use this file to load properties co2 calculate faster and more accurate