HEA|  |01305nam0 2200301   45  
001|  |0149051622
005|  |1920010110072230
010|  |□d￥0.14
091|  |□aCN□b15096.20
100|  |□a20010110d1976    em y0chiy0121    ea
101|0 |□achi
102|  |□aCN□b620000
105|  |□ay   z   000yy
106|  |□ar
200|10|□a怎样制取沼气□Azen yang zhi qu zhao-
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210|  |□a兰州□c甘肃人民出版社□d1976
215|  |□a39页□d19cm
606|  |□a甲烷-应用-农业
606|  |□a农业-甲烷-应用
690|  |□aS216
690|  |□aS216.4□v3
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801| 2|□aCN□bMT
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