文档介绍：会计学
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潜艇修理船
648 Submarine Repair Ship - Repair 911 East
Historical background:
      70 types of naval submarines are maturing, however, ship building and repair at sea is increasingly failing to repair the Navy's modernization needs. As soon as possible the level of the construction of a modern repair ships at sea, naval equipment and technology in October 1975 the Ministry issued a formal design of the submarine fleet of mobile repair mission statement, there are 708 3 chamber design. The mobile repair fleet mainly by the lifting force of the submarine repair ships and 19,620 kN (2000 tons force) level pontoon (not built), with the Bohai Shipyard. From the beginning of the design, research, feasibility studies, completed the construction of the formal delivery of forces used, which lasted 10 years. It is China's first medium-sized ship repair, ship formerly known as U911.
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648型潜艇修理船--东修911
历史背景：
70年代我国海军潜艇类型日趋完善，然而建船的海上修理和抢修越来越跟不上海军现代化建设的需要。为尽快建造具有现代化水平的海上修理船，海军装备技术部于1975年10月正式下达了潜艇流动修理船队的设计任务书，有708所3室设计。该流动修理船队主要由潜艇修理船和举力19620千牛（2000吨力）级浮船(未建）组成，渤海造船厂建造。从开始设计，调研，论证，建造完毕正式交付部队使用，历时10年 。它是中国第一艘中型修理船，原名U911舰。
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Performance characteristics:
The ship was independently developed by China, all use of domestic equipment, equipment modernization is more complete repair ship at sea. As a dedicated submarine repair ship, is also rare in the international arena. It has the advanced technological process, and many other features spacious work area, while both inflation, charging, providing water supply and other functions. The ship is designed in the mid-70s study, due to prevailing conditions, there is no room automation and automatic navigation, but in terms of their level of general repair work is still regarded as the international advanced level of similar vessels.
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性能特征：
该船是我国自行研制，全部采用国产设备，设备较为齐全的现代化海上修理工作船。作为潜艇专用的修理船，在国际上亦属鲜见。它具有工艺流程先进，作业场所宽敞等诸多特点，同时兼