bilge block [船] 舭墩 ; 底边枕木 ; 边墩 ; 舭墩木

automatic bilge block 自动定位及举升舭墩

bilge-block runner 舭墩纵支撑

collapsible bilge block 可卸舭龙骨墩

sliding bilge block 机械舭墩

mechanical bilge block 机械舭墩 ; 活动舭墩 ; 机动舭墩

keel-and-bilge block 垫船木块

keel and bilge block 垫船木块