противофильтрационная завеса
Curtain grouting, cutoff curtain, grout (cutoff) curtain, grout cutoff, cutoff, pressure-grouted diaphragm, watertight diaphragm
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Curtain grouting, cutoff curtain, grout (cutoff) curtain, grout cutoff, cutoff, pressure-grouted diaphragm, watertight diaphragm