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Plant for improving the flow of waste water through a drain pipe of a culvert arrangement
Plant for improving the flow of waste water through a drain pipe of a culvert arrangement
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机译:用于改善污水通过涵洞排水管的设备
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摘要
Flushing water is periodically introduced in at least one strong jet into an interior space of the sewer filled with sewage in order to wash away impurities which have accumulated in it. IMAGE
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