Значения для термина "main keel" отсутствуют.
1 At 9 A.M. capsized boat, got the main keel up, carpenter repairing it.
2 Reported our main keel to Captain Flinders being gone.
3 Half of the main keel was afterwards found gone.)
4 Employed making a raft of our spars and main keel : sent the carpenters on shore to build a punt.
5 It is placed above the cross-pieces and half-floors, and a bolt is driven right through all into the main keel .
6 Upon putting to sea again, her main keel was carried away and she was then forced to abandon her project.
7 From this circumstance, it seemed more probable that the main keel had received some serious damage near the middle of the ship.
8 Wore ship, Ball's Pyramid, at 6 distant off shore 10 miles, at 11 found main keel gone.
9 At 5 P.M. we began to touch the ground and perceived that our main keel was gone, part of it coming up alongside.
10 Sent the First Mate and a party to water and wood the vessel; hoisted our main keel * (* That is the middle centre board.)
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