难易程度分级
classification of difficulty degree
损坏程度分级
Serious degree of rutting
危险程度分级
Danger level classification
表观空气分级燃烧
apparent air stage combustion
补给空气分气阀
additional air slide valve
城市气象灾害
urban meteorological disaster
meteorological disaster in city
低煤阶煤的分级气化
gradual gasifying of low rank coal
分级气流床气化炉
staged entrained flow coal gasifier
高级气象卫星
advanced meteorological satellite
国家级气象高性能计算机资源
national meteorological high performance computer resources
国象气象信息中心
national meteorological information center
海南省气象灾害预警中心
Hainan Meteorological Disaster and Warning Center