DDRGS distributed dynamic route guidance systems
distance between guide beams
disturb on IR and MMW guidance
guidance of in vivo absorption and distribution of
long-distance guided communication
distance between centres of lines;distance between centers of tracks;midway between tracks
distance offset distance
handing over between midcourse guidance and teminal guidance
zero distance connection
2-distance chromatic number
50 Hz industry disturbance
6-minute walking distance test