GB/T 31157-2014
ActiveClassification for the intensity of solar soft X-ray flare
太阳软X射线耀斑强度分级
🔗 Related Standards / 同类标准
GB/T 958-1989
Geological symbols used for regional geological maps(1∶50000)
GB/T 12329-1990
Karst geology terminology
GB/T 13336-1991
The series model of hydrometric instruments
GB/T 14499-1993
Technical symbols for use in geophysical exploration
GB/T 14498-1993
Engineering geological terminology
GB/T 14496-1993
Terms of geochemical exploration
GB/T 14839-1993
Technical symbols for geochemical exploration
GB/T 15919-1995
Oceanographic terminology--Marine biology