【化】 conservative substitution
conserve; hold; keep; preserve; reserve; save; conservancy; conservation
preservation
【计】 save
【医】 Cons.; conservancy; conservation; preservation; Serv.; servation
displacement; metathesis; permute
【计】 pernutation; substitute; substitution
【化】 metathesis; permutation
【医】 displacement; metathesis; replacement; substitution
【经】 permutation