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DISCHARGE OF EXCAVATED SOIL IN BLIND SHIELDING METHOD

申请公布号:JPS56135697(A)

申请号:JP19800037041

申请日期:1980.03.24

申请公布日期:1981.10.23

申请人:
MITSUI CONSTR

发明人:AKAZAWA NOBUYOSHI;INOUE KAZUTOSHI

分类号:E21D9/12

主分类号:E21D9/12

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