| 单词 | 内龙骨 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔futtock plate〕An iron plate attached horizontally to the top of the lower mast to secure the topmast rigging and the upper ends of the futtock shrouds.内龙骨翼板：一种用于保护中桅索具和桅楼侧支索的最上端部分而水平地安装在低桅顶端的铁板美国传统〔futtock shroud〕One of the iron rods extending from a band on the lower mast to the futtock plate, used to brace the base of the topmast.桅楼侧支索：一种用来固定中桅底座而从低桅的一个箍圈延伸到内龙骨翼板的铁杆美国传统〔keelson〕A timber or girder fastened above and parallel to the keel of a ship or boat for additional strength.内龙骨：固定在船或舟的龙骨之上或与之平行的木材或桁，以加强船的力量美国传统 |
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