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发明名称
EXTRACTION HEAT INCREASING METHOD FOR GEOTHERMAL EXTRACTION METHOD BY SINGLE UNDERMINING WELL
摘要
申请公布号
JPH0492074(A)
申请公布日期
1992.03.25
申请号
JP19900207394
申请日期
1990.08.03
申请人
AGENCY OF IND SCIENCE & TECHNOL
发明人
MORITA KOJI
分类号
E21B43/00;E21B43/26
主分类号
E21B43/00
代理机构
代理人
主权项
地址
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