Both tugs are fitted with a Kort Nozzle to improve their efficiency.

拖船都配备了一个导筒来提高他们的效率。

How many tugs assist pilotage?

几艘拖船协助引航？

Make fast two tugs on each bow.

把每舷船首两艘拖船绑牢。

Still, it tugs at our minds.

依然，这与我们的思想有关。

No, you need not take tugs.

不，你船不需要叫拖船。