1·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。
2·Special tugs now usher tankers in and out of Valdez to the open sea.
现在，进出瓦尔迪兹港的油轮由特别的拖船引导。
3·It tugs at your hand, moving forward, backward, left and right to offer cues on direction and keep drivers from being distracted.
它拖船在你的手，前进，后退，左，右方向上提供线索，防止司机分心。
4·I require tugs.
我船需要拖船。
5·A method of towing vessels through polar ice by means of icebreaking tugs with a special stern notch suited to receive and bow of the vessel to be towed.