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尽管在少数国家和一些地区出现略为增长的势头,但全球潜艇的总数却正在减少。调查表明,自上个世纪90年代以来,全球范围内的作战潜艇总数已削减了50%,即从1990年的约800艘降至2002年的400艘左右。而同一时
Despite the slight upward trend in a few countries and some regions, the total number of submarines in the world is declining. Surveys show that the total number of combat submarines in the world has been reduced by 50% since the 1990s, from about 800 in 1990 to about 400 in 2002. At the same time