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
annulus formed between core shroud and pressure vessel wall
control rod drive mechanism cooling shroud
control rod shroud assembly
control rod shroud tube
core shroud support ring