输水管道工程回填土压实度应符合设计要求。
The compact density of backfill earth in water transportation pipeline construction has to meet the requirements in design stage.
从管道上部600毫米高度处到地面标高之间的回填土的压实程度应至少同周围的土质相同。
Compactness from 600 mm above the pipe to surface grade shall be at least equal to surrounding soil.
冲夯机适用于公路建造中台背处回填土砂石压实；
HCR Tamping rammer, is used to compact the gravel, sand in road construction;
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