鳍状龙骨的英文怎么说
鳍状龙骨的英文: n. 压舱物,压载物;道渣,碎石 v. 给…装压舱物;给…铺道渣 They ballasted the ship. They ballasted the railroad. The ballast placed in the ship can keep the ship steady. n. 鱼鳍;尾翅;散热片;鳍状物 v. 装上翅片;拍动(鳍) Each fin has a stiff spine. A surfboard fin sliced the crest of a wave. Yes, that is a shark's back fin. n. 龙骨 v. (把…)翻转,倾覆 The workers are laying a keel of the ship. The intense heat keeled her over. Something, such as the keel of a ship, that resembles a backbone in appearance or position. |