求翻译：我公司2012年4月24日按建设单位要求，调整施工进度，在101厂房钢结构天棚施工前，已将101厂房的地坪基础土方、级配碎石过行回填施工。是什么意思？

April 24, 2012, the construction unit requirements, adjust the construction schedule, 101 plant steel ceiling construction, has 101 plant floor the foundation earthworks, graded gravel over the line backfill construction.

My company April 24, 2012, adjust the construction works in progress, and steel canopy 101 plant construction, the 101 factory in the earthwork and foundation, level gravel with the backfilling works.

Our company on April 24, 2012 requests according to the construction unit, the adjustment construction progress, before 101 workshop steel structure ceiling construction, 101 workshop grounds around a house foundation folk recipes, the graded broken stone has gone through another firm as a middleman

April 24, 2012, according to the construction requirements of our company, and adjustment of construction progress, in 101 workshop marquee before the construction of steel structures, has 101 workshop flooring earthmoving, grading gravel backfill construction of the Foundation.

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