在海战中,潜艇常常是最令人头疼的武器之一,它藏身于深邃的海底,使人难觅其踪。一旦发现目标,它就象鳄鱼般悄悄迫近,然后出其不意地向猎物发起攻击。一击得手马上全身而退,令人防不胜防。因而它被人称之为“海狼”。第二次世界大战中,潜艇共击沉战舰和运输船4900余艘,总吨位达1469万吨,占被击沉舰船总吨位的68％。就连素以顽强不屈而著称的英国首相丘吉尔也不得不承认,“在战争期间唯一使我感到恐惧的 In naval battles, the submarine is often one of the most troubling weapons, hiding in the depths of the sea and making it hard to find. Once the target is found, it creeps in like a crocodile and attacks the target prey by surprise. Smashed the body immediately and retreat, it is impossible to prevent. So it is called “sea wolf”. During the Second World War, the submarines battled a total of 4,900 battleships and transport ships with a total tonnage of 14,690,000 tons, accounting for 68% of the total tonnage of the battered ships. Even Britain’s Prime Minister Winston Churchill, who is known for being indomitable, has to admit that "the only thing that scared me during the war