【计】 circuit switching station
circuitry; line; route
【计】 circuit; L
exchange; interchange; change for; commute; permutation; reciprocation
replacement
【计】 exchange; swap; swapping; switching; transput; X
【医】 chiasmapy; cross-over; crossing-over
【经】 interchange; swap
stage; stand; station; stop
【计】 station
【化】 platform; station
【医】 plant; station