青云翻译

All vent pipes on the mouth, low efflux pumps, sewage outfall, should be open discharge end, etc.

All venting, low point on the pipe line pumps, sewage outlets, emissions should be open by the end

On the pipeline all puts the idle talk, a low point row of pump, the pollution outlet, the terminal and so on place should open the emissions

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All venting, low point on the pipe line pumps, sewage outlets, emissions should be open by the end