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发明名称
摘要
申请公布号
SU546733(A1)
申请公布日期
1977.02.15
申请号
SU19711669160
申请日期
1971.06.15
申请人
发明人
分类号
F01D25/30;F04D29/54;(IPC1-7):F01D25/30
主分类号
F01D25/30
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