Mistake of row-column number in the drawing number of 1∶1000000
recombination of the number of grain and the number of panicle
zero distance connection
6-minute walking distance test
a long distance monitoring and controlling
Absolute Distance Measurement
absolute surplus distance
abstract distance space
abstract of zenith distance
accelerate-stop distance
accelerate-stop distance (ASD)
accelerate-stop distance available (ASDA)