balanced hatchcover [船] 平衡舱盖

hinged hatchcover 铰链式舱盖 ; 绞链式舱盖

single pull hatchcover [船] 滚翻式舱盖 ; 滚翻式舱口盖

hatchcover jacking device 舱盖起升装置 ; 舱盖板起升装置 ; [船] 舱盖起升器

piggyback hatchcover 驼载式舱口盖 ; 背载型舱口盖

hinged folding hatchcover 铰链折叠式舱口盖 ; 折叠式舱盖

access hatchcover [船] 出入舱口盖

folding hatchcover 折叠式舱口盖 ; [船] 折叠式舱盖 ; 折式舱盖

mechanical hatchcover 机械舱口盖 ; 机械式舱口盖 ; 坏式舱口盖