【计】 user acknowledge
consumer; user
【计】 SUB; U
【经】 consumer; consumer buyer; ultimate purchaser; user
affirm; countersign; notarize; validate; acknowledgement; affirmance
identification; verification
【计】 ACK; ACK0; ACK1; acknowledgement; AK; confirm; confirm on; confirmation
【医】 affirmation
【经】 ratify; recognize