feed into the chamber

belt feed pawl (belt-feed pawl)

belt-feed pawl pin / belt feed pawl pin

belt feed pawl spring / belt-feed pawl spring

belt feed lever pivot spring / belt-feed lever pivot spring

feed block slide (feed-block-actuating slide)

feed troops into the attack

feed troops into battle

can-annular burner / combustion chamber

cartridge chamber

chamber proportion

decompression chamber

expansion chamber

floating chamber

gas chamber

hyperbaric / decompression chamber

powder chamber

propellant storage chamber

thrust chamber

breech block pivoted below the level of the chamber

fume chamber

thrust-chamber fuel purge

thrust-chamber oxidizer purge

anti-chamber

barrel chamber

brake chamber diaphragm

breech chamber

bullet chamber

chamber capacity

chamber cleaning tool

chamber mouth

combustion chamber intake ports

cooling chamber