літак(и) другої лінії
second line
second line of defence
second-mission aircraft
deployment line; line of deployment (LD); line of departure
meters per second (m/s)
second in command (2i/c , 2IC)
second lieutenant
second order effect
floating-point operation per second (FLOP)
captain second rank
fuel flow (kilogram/second)
centimeter-gram-second (CGS)
meter-kilogram-second-ampere system (MKSA)
meters per second (MPS)
second cause
second mean chord
additional second lieutenant
second-trip echo
second wave attack theory
second classman
second commander
second for service
second echelon maintenance
second element
second John
second level rater
second strike force
second theater
second-in-command
second-strike strategy
second-strike weapon
split-second firepower