【计】 loop interchange
cycle; recur; circle; rotate; circulation; repetition; revolution
【计】 DO-loop; for-loop; loop; unwinding
【化】 recirculate
【医】 circuIation; cycle
【经】 cycle; revolving; rotation
exchange; interchange; change for; commute; permutation; reciprocation
replacement
【计】 exchange; swap; swapping; switching; transput; X
【医】 chiasmapy; cross-over; crossing-over
【经】 interchange; swap