building national environmental protection model city
National Environmental Protection
national environmental standard samples
national satellite photograph
Environmental Satellite
environmental satellite HJ-1
environmental service industry
environmental service valuation of forest resource
Geostationary Operational Environmental Satellite
payment for forest environmental service
fixed satellite service
Radio Determination Satellite Service RDSS
Radio Navigation Satellite Service RNSS
carrying out national requirements in national defense
environmental pollution and environmental protecti
environmental pollution and environmental protection
Low-low satellite to satellite tracking mode