- detached keel and keelson
- 分离: separate; sever; resolve; se ...
- 龙骨: a bird's sternum fossil frag ...
- 离龙类: choristodera
- 离龙目: choristodera
- 龙骨: 1.(鸟类的胸骨) a bird's sternum2.[中药] fossil fragments3.(船只、飞机、建筑物等的支撑和承重结构) keel◇龙骨板 keel plate; 龙骨底板 shoe; 龙骨木 rising wood; 龙骨线 keel-line; 龙骨线脚 [建筑] keel molding; 龙骨翼板 garboard; garboard strake
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