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.

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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.

youdao