【化】 exchange of acetal linkage; transacetalation
【化】 acetal; aldehyde acetal
【医】 acetal
catenary; chain
【医】 chain
exchange; interchange; change for; commute; permutation; reciprocation
replacement
【计】 exchange; swap; swapping; switching; transput; X
【医】 chiasmapy; cross-over; crossing-over
【经】 interchange; swap
affect; effect; intention; action; motive; operation
【医】 action; effect; process; role
【经】 role