561 小艇工场 boat shop

562 小艇龙骨架 boat skid

563 小艇吊索 boat sling

564 小艇系杆 boat spar

565 小艇支柱 boat stand

566 登艇站 boat station

567 小艇储放装置 boat stowage

568 水手长,帆缆上士 boatswain (or bosun)

569 工作吊板 boatswain‘s chair

570 帆缆库 boatswain‘s (or deck) store

571 帆缆库 boatswain‘s store room

572 小艇空气箱 boat tanks

573 小艇起吊试验 boat test

574 小艇绞车 boat winch

575 艏斜桅拉条,艏斜桅牵索 bobstay

576 吊锤重 bob weight

577 生化需氧量 BOD (= biochemical oxygen demand)

578 横剖面线图 body plan

579 挥发气 BOG (= boil-off gas)

580 应急舵链 boggin line (or rudder pendant chain)

581 1)锅炉 2)汽锅 boiler

582 锅炉座 boiler bearer (or saddle, or seating, or stool)

583 锅炉承架 boiler bracket

584 1)锅炉壳 2)锅炉棚 boiler casing

585 锅炉隔热板 boiler cladding

586 [锅]炉[周]围间隙 boiler clearance

587 锅炉[绝热]包层 boiler clothing (or lagging)

588 锅炉粉 boiler compound

589 锅炉架 boiler cradle

590 [锅]炉鼓 boiler drum