求翻译：核对建筑物地面、墙面的做法及厚度。找出预留口坐标、标高。然后按精确尺寸修整预留洞口。粘牢后找正、找直，封闭管口和堵洞，需要开下一层立管扫除口，用充气橡胶堵封闭上部，进行闭水试验。合格后，撤去橡胶堵，封好扫除口。是什么意思？

Check building floor , walls practice and thickness.

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Checkup building ground, wall surface procedure and thickness.Discovers the reservation mouth coordinates, the elevation.Then reserves Dongkou according to the precise size conditioning.粘牢后找正、找直，封闭管口和堵洞，需要开下一层立管扫除口，用充气橡胶堵封闭上部，进行闭水试验。After qualified, withdraws the rubber to stop up, seals the cleanin

Check the practice of building floors, walls and thickness. Find the provision of coordinates, elevation. And according to precise finishing hole. After the cement was found, looking for straight, closed tube and plugging holes, required under a layer of pipe cleaning, using inflatable rubber plug c

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