求翻译：1清理基层、找规矩：将基层清理干净，表面灰浆皮要铲掉、扫净。将混凝土楼面上的砂浆污物等清理干净。如基层有油污，应用10%的火碱水刷洗净后，用清水冲扫其上的碱液，并认真将板面的凹坑内的污物剔扫干净。是什么意思？

1 clean up grassroots, find rules: grassroots clean, surface mortars to shovel out, sweeping the net. Concrete mortar clean the dirt on the floor. Base oil, 10% caustic soda water cleaning after the net, on water swept the lye, and earnestly make the Board within the pit of filth tick swept clean.