?? ??????????????? ??????????? ???????? ?? ??? ???????????? ???, ?? ????????? ?? ?????????????? ???? ???.Make selected traps are filled with h2o, For the reason that water in flooring drains pipes as well as other drainpipe traps has a tendency to vaporize??????, ?? ??????? ??? ?? ???????? ?????? ???, ???? ???? ????? ??? ??????????.?? ????? ???????