trimmer float pontoon floor panel keel beam pylon pylon rear spar
调整片浮筒地板龙骨梁吊挂吊挂后梁
A longitudinal beam connected to the keel of ship to strengthen it.
连接到船的龙骨上加强其力量的纵向的撑梁。
The standby system components are located in the main gear wheel well, on the keel beam and the aft bulkhead.
备用系统组件位于主轮舱，压力隔板后方龙骨上方。
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