HEA|  |01377nam0 2200325   45  
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010|  |□d￥3.90
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100|  |□a20010108d1987    em y0chiy0121    ea
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200|10|□a壳体开孔的理论与实验□f徐秉汉等著□Aqiao ti k-
   |  |ai kong de li lun yu shi yan
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