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论述了船舶海水管系腐蚀的主要原因及影响腐蚀的重要因素，提出了防止管系腐蚀的方法。
The main causes of the seawater pipeline corrosion on board and major factors affecting the corrosion were discussed, and measures of how to prevent it put forward in this paper.
在海水管道系统中，由泵、阀门、弯头等元件引起的压力脉动(即流噪声)是主要的噪声源，消声器被广泛应用于抑制流体压力脉动。
Fluid pressure pulse is one of the main noise source in water piping system, mufflers are widely used to restrain pressure pulse.
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