Mistake of row-column number in the drawing number of 1∶1000000

recombination of the number of grain and the number of panicle

5-step ship lock

accelerator lock

access control lock

access lock

active-lock

actively mode lock

adapter lock

adding current lock

adjusting bracket lock bolt

adjusting nut lock

adjusting ring lock

aid to navigation in lock area

air lock

air lock valve

Air-Lock

airlock

anatomical dynamic hip lock plate

anti - lock btaking system