seasoning
seat
sea-water
sec
SECAM
seco
secon
second
secondary
secondary-electron
  secondary-emission
second-breakdown
second-breakdown-resistant
second-channel
second-crossover
second-derivative
second-kind
second-order
second-subharmonic
second-time-around
second-transition

    secondary-emission characteristic

    кривая зависимости коэффициента вторичной эмиссии от энергии первичных электронов