墙砖、地砖在贴之前，泡水时间一定要够。同时要将地漏用东西塞好，防止水泥掉下去堵塞下水道。
Wall brick, floor tile in the post, before bubble water must enough time. At the same time will use item floor drain plug well, prevent cement fall blocking drains.
在油田开发过程水泥浆堵塞油管现象时有发生。
It frequently occurs during exploitation in some oilfields that the oil pipes were jammed by cement slurry.
在油田开发过程水泥浆堵塞油管现象时有发生。
It frequently occurs during exploitation in some oilfields that the oil pipes were jammed by cement slurry.
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