求翻译：3楼、地面基层或面层施工时，必须用木塞或水泥纸将地漏或水池管口临时封闭，严防水泥砂浆和杂物坠入管内堵塞管道，影响排水。是什么意思？

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3 And on the ground floor at grass-roots or surface layer, and must be carried out with a wooden plug or cement paper will Ground leakage or pool pipe temporary closure, to guard against cement mortar and debris from falling into the interior of the pipe plug pipelines, affect drainage.

When 3 buildings, ground basic units or surface layer construction, must use the wooden cork either the cement paper the floor drain or the basin orifice temporary seal, takes strict precautions against the cement mortar and the sundry goods crashes into in the tube to stop up the pipeline, affects

3 f, when ground or surface construction at the basic level, you must use a cork or temporary closure of paper cement floor drain or sink spout, to prevent blocked pipeline in cement mortar and debris into the tube, affecting the drainage.