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发明名称
Porosity measurement
摘要
申请公布号
GB9825769(D0)
申请公布日期
1999.01.20
申请号
GB19980025769
申请日期
1998.11.26
申请人
INSTITUTE OF GRASSLAND & ENVIRONMENTAL RESEARCH
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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