clockspring
clockwise
clockwise-polarized
clog
close
close-confinement
close-coupled
closed
closed-circuit
closed-coil
  closed-cycle
closed-entry
close-differential
closed-loop
closed-packed
closed-shell
closed-system
closed-tube
close-in
closely-coupled
close-packed

    closed-cycle cryogenic cooling

    криогенная система охлаждения с замкнутым циклом