?杆索 boom sheet
?杆座,杆窝 boom socket (or step)
?吊杆搁置架 boom support (or rest)
?吊杆台 boom table
?帆桁滑车组 boom tackle
?吊杆试验 boom test
?滑车挂杆 boomkin (or bumpkin, or spider)
?加力器,增压器 booster
?助力增幅器(电) booster amplifier
?助力机 booster engine
?中间加热器 booster heater
?增压泵 booster pump
?杆座,杆窝 boom socket (or step)
?吊杆搁置架 boom support (or rest)
?吊杆台 boom table
?帆桁滑车组 boom tackle
?吊杆试验 boom test
?滑车挂杆 boomkin (or bumpkin, or spider)
?加力器,增压器 booster
?助力增幅器(电) booster amplifier
?助力机 booster engine
?中间加热器 booster heater
?增压泵 booster pump
?加力泵 booster pump
?升压系统,增压系统 booster system
?水线漆,水线长(游艇) boot topping (BT)
?水线漆 boot topping paint (BT)
?防喷装置 BOP (= blowout preventor)
?前桅支索 bore rigging
?搪孔 boring
?搪杆 boring bar
?搪床 boring machine
?角铁对接塔铁 bosom piece
?毂 boss (or hub)
?毂铸件 boss casting
?毂径比 boss diameter ratio
?毂板 boss plate
?毂径比 boss ratio
?艉膨出肋骨 bossed frame
?艉膨出部 bossing
?底;船底 bottom
?舱底塞 bottom (or decking) plug
?舱底塞 bottom (or docking) plug
?[炉]底吹泄 bottom blow off
?舱地板 bottom board
?舱底货 bottom cargo
?舱底铺板 bottom ceiling
?船底胶结剂 bottom cement
?底盖 bottom cover
?下死点 bottom dead center
?[船]底肋骨 bottom frame
?底纵梁 bottom girder
?[船]底纵梁 bottom girder