【经】 negative certificate of origin
producing area
【医】 habitat; metropolis
【经】 field; origin
disavow; disavowal; gainsay; inversion; negation; negative
【医】 in-; negation
prove; certify; argue; demonstrate; justify; manifest; testify; vouch
【计】 proofness; proving
【化】 proofing
【医】 certificate; certify; proof
【经】 attest; attestation; authenticated; authentication; certification
certify; testimony