文件名称:chilun
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解决三齿轮重合问题,假设三个齿轮在某一瞬间重合,问经各过多少圈后再次重合。齿轮数分别为a,b,c-To solve the coincidence of three gears, assuming three gears in a moment of coincidence, and asked how many laps in all the overlap again. Gears, respectively for a, b, c
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chilun.txt