干井集水泵 dry well sum pump
集水坑泵 sump pump
自立集水水泵接合器 free-standing siamese fire department connection
集水坑泵运转 sump pump operation
集水泵
Sump pump
以上为机器翻译结果，长、整句建议使用 人工翻译 。
经过粗格栅污水汇入进水泵站集水坑中，再由潜水泵提升至细格栅进水管。
Sewage flows through coarse bar screen and into inlet pump station drop pit, then is lifted to fine bar screen by drowned pumps.
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