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常规潜艇,即非核动力潜艇。经过半个世纪的实践进一步证明,常规潜艇有着独特作用,仍具有顽强的生命力。主要原因是:①噪声低;②易管理;③运动灵活,适于浅海区;④无核污染;⑤造价低。特别是由于科技进步,各种通讯、雷达、声纳等设备的不断改进和新材料的运用,以及各式导弹也陆续上艇,……常规潜艇的战术技术性能明显提高,促使一般国家对其更加偏爱。据统计:目前全球有43个国家共拥有400艘左右常规潜艇。拥有常规潜艇的国家,大致可分为下列三种情况:1.自行研制、建造常规潜艇。多为潜艇大国或强国:如俄、法、德、日、意、荷、瑞典等国,但这些国家却很少发行自己国产常规潜艇邮票。图1是1979年意大利发行的小全张中的国产常规潜艇“科萨托”号(1977年造)。2.
Conventional submarines, that is, non-nuclear-powered submarines. After half a century of practice further proves that the conventional submarine has a unique role, still has a strong vitality. The main reason is: ① low noise; ② easy to manage; ③ flexible, suitable for shallow sea areas; ④ non-nuclear pollution; ⑤ low cost. Especially due to the progress of science and technology, continuous improvement of various communications, radar, sonar and other equipment as well as the application of new materials, as well as various types of missiles, one after another on the boat ...... The conventional submarine’s tactical and technical performance has obviously improved, prompting the general country to its More preference. According to statistics: At present there are 43 countries in the world with a total of about 400 conventional submarines. Countries with conventional submarines can be broadly divided into the following three situations: 1. Self-developed and built conventional submarines. Most of the submarine power or power: such as Russia, France, Germany, Japan, Italy, Netherlands, Sweden and other countries, but these countries seldom issue their own domestic conventional submarine stamps. Figure 1 is a 1979 domestic production of conventional submarine “Ko Sato” (made in 1977) issued by Italy. 2.