Day - to - day variability in 5_q
day to day site supervision
Earth Day [first Earth Day in 1970]
First day and last day of maximum temperature
A line used as both sterile and maintaining line
agonic line {agonic line of no declination}
Dual purpose line with nucleic male sterile line
Fault Cutoff Line Allan Line
Male sterility line and maintainer line
velocity line of arc line short band