【电】 exchange area
exchange; interchange; change for; commute; permutation; reciprocation
replacement
【计】 exchange; swap; swapping; switching; transput; X
【医】 chiasmapy; cross-over; crossing-over
【经】 interchange; swap
area; circumscription; confine; district; extent; reach; region; section
【计】 A; area; region
【化】 band