【计】 commutative matrix
approve; but; can; may; need; yet
exchange; interchange; change for; commute; permutation; reciprocation
replacement
【计】 exchange; swap; swapping; switching; transput; X
【医】 chiasmapy; cross-over; crossing-over
【经】 interchange; swap
matrix
【计】 matrix
【化】 matrix
【经】 matrices; matrix