| 单词 | keelson |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔limbers〕Gutters or channels on each side of a ship's keelson that drain bilge water into the pump well.污水道，通水孔：船底龙骨两侧用来排污水的水槽或水道美国传统〔stemson〕A piece of supporting timber bolted to the stem and keelson at their junction near the bow of a wooden vessel.副艏柱：在木船船头附近，栓在艏柱和龙骨结合处的一块支木美国传统 |
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