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七十年代初,为了扩大导弹核潜艇的活动范围,加强海基威慑力量,美国决定试制一种水下发射的远程导弹。在论证过程中,要求新导弹能装备到现有海神导弹核潜艇上,因而使新导弹的外形和尺寸受到限制。水下发射远程导弹的研制工作决定分两步走。第一步研制一种外形与海神导弹基本相同,而射程达7400公里的三叉戟Ⅰ导弹;第二步研制外形尺寸大、
In the early 1970s, in order to expand the scope of the activities of missile submarines and strengthen the deterrent capabilities of the sea base, the United States decided to try out a prototype of a long-range underwater missile launched. During the demonstration, the new missiles were required to be equipped on existing Neptunus missile nuclear submarines, thereby limiting the size and shape of the new missile. The development of underwater launch long-range missile decided to go in two steps. The first step to develop a shape and Poseidon missiles basically the same, while the range of 7400 km Trident Ⅰ missiles; the second step to develop large size,