【经】 confirmation copy
affirm; countersign; notarize; validate; acknowledgement; affirmance
identification; verification
【计】 ACK; ACK0; ACK1; acknowledgement; AK; confirm; confirm on; confirmation
【医】 affirmation
【经】 ratify; recognize
advice note; notice
【化】 note; notice
【经】 advice; notification
carbon; copy; counterpart; duplicate; repetition; script; transcript
【计】 back-up copy; copy; counter-part
【经】 copy; counterpart; duplicate; duplicate copy; duplication