Finger-mark Check

fuel injection pump timing mark check

mark check

timing mark check

Auto Check and Mark System

mark counting check

check digit check

Check in and check out

check sum check

machine check and program check

clear mark [= clearing mark]

End-of-Tape Mark (EOT Mark)

tidal bench mark [= tidal mark]

a check of achievement and effect

A Check-up System

a quick check

Abdominal check

abnormal spot-check

acceleration check speed