中文翻译与英英解释

【造船】副龙骨，保护龙骨。

false:    adj. (opp. true) 1.虚伪的，虚假的，捏 ...

keel:    n. (给木材等做记号的)红色颜料，代赭石。

The false keel was a timber, forming part of the hull of a wooden sailing ship. Typically 6?inches thick for a 74-gun ship in the 19th century, the false keel was constructed in several pieces, which were scarphed together, and attached to the underside of the keel by iron staples.