舱口纵向衬梁
hatch carling
hatch carline
舱口梁
hatch web
hatchway beam
bridle beam
hatch beam
hard beam
舱口梁承座
hatch beam carrier
shifting beam
hatch carrier
hatch beam shoe
Carrier
舱口梁吊钩
beamends hooks
beam hooks
beam sling
舱口梁座
hatch carrier
beam shoe
hatch socket
hatch beam carrier
hatch beam shore
beam coaming shoe
beam socket
舱口纵桁
hatch side girder
fore and afters
fore-and afters
锅炉舱舱口
boileropening
boiler hatch
boiler opening