单词U-boat
n.: (德国)潜水艇
网络: 优宝；潜艇；德国潜水艇
（德国） U 潜艇:
a German submarine (= a ship that can travel underwater)
(德国)潜水艇
复数：u-boats
Dive planes Horizontally mounted fins on the U-boat"s external hull used to help the boat dive or climb.
水平舵，安装于潜艇外壳水平方向上的舵，用以帮助潜艇下潜或上浮。
He wrote: "The only thing that ever frightened me during the war was the U-boat peril. "
他写道：“战争期间唯一让我害怕过的东西就是来自U艇的威胁。”
Hitler complained that this single invention was the ruin of the U-boat campaign.
希特勒抱怨说，这一发明是潜艇战遭到覆灭的原因。
The U-boat should be so effectively countered that our convoys could count with comparative certainty on making a safe Atlantic crossing.
对敌潜水艇应采取有效措施，以使我横渡大西洋的护航队获得相当安全。
If you were sending a U-boat in to pick up a fugitive spy, what would you think was the nearest sub could safely come to the coast?
如果让你派潜水艇接应一个逃亡间谍，你认为哪是最近最安全的接应点？
On two or three occasions, notably on October l7, 1914, the alarm was given that there was a U-boat inside the anchorage.
曾有两三次，尤其是在1914年10月17日，警报传出，说在停泊所内发砚了一艘潜艇。
When I looked again to horror was added chagrin, for with the emerging of the U-boat I had recognized her as a product of our own shipyard.
当我再看看恐怖被补充懊恼，为同的出现德国潜水艇我已经承认了她当一个产品的我们的自己的船厂。
The work of mercy was interrupted by the appearance of U-boat and the British ships were compelled to withdraw.
施救工作由于一艘德国潜艇的出现而告中止，英国舰支不得不离去。
Pressure hull Cylindrical main hull protecting the U-boat"s crew and internal mechanisms, surrounded by streamlined external hull.
耐压船壳，潜艇的圆柱状主艇壳，直接承受来自海水的压力，保护内部的成员和机械。
The second section is the U-Boat Reference which portrays technical details of the submarines and their weapons and equipment.
第二章介绍U型潜艇，从潜艇技术性能以及武器和装备入手。