【计】 PBX
【计】 dedication; private use; special purpose
【经】 exclusive use
in miniature; miniature; minitype
【计】 miniature type
exchange; interchange; change for; commute; permutation; reciprocation
replacement
【计】 exchange; swap; swapping; switching; transput; X
【医】 chiasmapy; cross-over; crossing-over
【经】 interchange; swap
chance; crucial point; engine; machine; occasion; organic; pivot; plane
flexible
【医】 machine