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101|0 |▼aeng
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200|10|▼aMachine design
207| 0|▼av.1 (Sept. 1929)-
210|  |▼aCleveland, Ohio▼cPenton Publishing Co.
530|0 |▼aMachine Design
531|  |▼aMach. Des.
541|1 |▼a（美）机器设计
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