A replica of the keelboat they used is now on display here in the North Dakota capital of Bismarck.

他们使用的龙骨的复制品北达科他州首府俾斯麦展出。

They abandoned the log boat base for a keel plank, and the boats became higher and more seaworthy.

底不再独木舟基底，而改用龙骨板，变得更高，且更适合航海。

But look ye, the only real owner of anything is its commander; and hark ye, my conscience is in this ship's keel.

可你看着，这艘真正的它的长；你听着，我的良心这艘的龙骨。

To be successful in your mission, you have to swim under the ship and find the keel — the centerline and the deepest part of the ship.

要想成功完成任务，您必须游到底并找到龙骨——的中心线和最深的部分。