排水沟堵头 Drain plug
排水孔的堵头 scupper plug
清理堵塞排水管用栓塞 Plungers for clearing blocked drains ; plugs for clearing clogged drains
堵塞排水沟 block drain
浅谈排水管道中堵塞 Shihezi Science and Technology
清理堵塞排水管用手压皮碗 clean the clogged drain with a hand-pressed leather cup
问题包括排水管被堵、地基下沉，有时甚至出现了严重的结构性裂缝。
Problems include blocked drains, sunken foundations and, sometimes, large structural faults.
在减压井停止排水时，氧化作用进一步加剧，高价铁化合物向井结构内运移和吸附沉淀，逐渐造成减压井的淤堵。
While the well drainage stops, oxidization would speed up in the well, ferric compound would moves into the well structure and deposits inside it.
对治理技术方案、堵排水技术等也作了一定的阐述。
Finally the paper expounds the water harnessing project, water blocking and drainage technology.
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