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Mixt. for sealing wall of borehole in underground formation, - contg. bentonite, hydraulic cement, slaked lime and sodium carbonate

机译：混蛋用于密封地下地层中的钻孔壁-续膨润土，水硬性水泥，熟石灰和碳酸钠

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摘要

A mixt. for sealing the walls of boreholes in underground formations contains (a) bentonite, (b) hydraulic cement, (c) slaked lime and (d) Na2CO3.

机译：混蛋用于密封地下地层井壁的材料包括：（a）膨润土，（b）水硬性水泥，（c）熟石灰和（d）Na2CO3。