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SC-21是21世纪美国海军水面舰艇研制计划名称的缩写。根据预测,到2006年,美海军水面舰艇数量会急剧减少,其对策是计划开发 SC-21水面舰艇系列。1989年在马耳他举行的美苏首脑会议上,宣布冷战结束;1991年12月苏联解体。从此,美海军的海上战略急需从远洋向沿岸转移。二战后,美海军的水面舰艇有了很大发展,当时针对前苏联大量潜艇的威胁,重点发
SC-21 is the acronym for the name of the plan of the United States Navy surface ship development in the 21st century. According to the forecast, by 2006, the number of surface naval vessels on the U.S. Navy will decrease drastically. The countermeasure is to plan to develop the SC-21 series of surface ships. At the U.S.-Soviet summit held in Malta in 1989, the Cold War was declared an end. In December 1991, the Soviet Union was dissolved. Since then, the U.S. naval maritime strategy urgently needs to be transferred from the ocean to the coast. After World War II, the U.S. Navy's surface ships have greatly developed. At that time, in response to the threat posed by the large number of submarines in the former Soviet Union,