oil system block

cylinder block (engine block)

feed block slide (feed-block-actuating slide)

engine oil reservoir / engine oil tank

oil gauge / oil-gauge

vertical sliding breech-block system

T-handle wrench with jointed hexagonal socket with block system

T-handle wrench with jointed hexagonal sockets and block system

lubrication oil system

circulating oil system

oil system failure

oil system hose

oil system pipe

oil system

fire extinguishing system sprinkler system and fire alarm system

block diagram

block face

block supplies

locking block

TNT block

breech block pivoted below the level of the chamber

disrupt, fix, turn or block the enemy force

all-round vision block

back on the block

block off

direct vision block

surveillance vision block

trunnion block

vision block

advanced building-block for large-area exploitation

basic building block

basic building block module

building block