【计】 cancelling signal
cancel; abolish; annul; call off; countermand; cry off; rescind; retract
rule out
【计】 backing-out; backout
【医】 ant-; anti-
【经】 abolish; abrogate; abrogation; cancel out; cancellation; cancelling
countermand; hold back; rescind; rescission; set-aside; take off
semaphore; signal
【计】 semaphore; signal
【化】 sign; signal
【医】 signal
【经】 call letter; signal