IGS: International GNSS Service
EUREF:EUREF is the IAG Reference Frame Sub-Commission for Europe,EUREF deals with the definition, realization and maintenance of the European Reference Frame - the geodetic infrastructure for multinational projects requiring precise geo-referencing
IAG:国际地貌学家协会
文章来源:http://meymz.blog.163.com/blog/static/38120921200762765219948
