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200|10|□a精密机械设计基础□f北京工业学院精密机械教研室编□Aji-
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210|  |□a北京□c国防工业出版社□d1981.1
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711|0 |□a北京工业学院精密机械教研室□4编□Abei jing g-
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   |  | jiao yan shi
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