以下为句子列表：
英文: Abstract: The maximum tube distribution numbers in tube sheet limited circle for fixed tube sheet heatexchanger have been determinded by used of the superposition method with computer based on C language programming.It is characterized by determination th
中文: 文摘:采用迭加的方法，使用C语言编程在微机上实现管板布管限定圆最大布管数的确定.该方法可根据中心布管数是奇排列还是偶排列来确定最大布管数，简便易行，计算速度快，对换热器的设计及工艺计算具有实用价值.
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