Wastewater is drained into the pipeline. Or drainage canal to be sent to treatment at the wastewater treatment plant. Or direct to the river.
ID: 787984474
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- 大图:4608 × 3456 像素·39.01 cm × 29.26 cm·300dpi·JPG
- 中图:1000 × 750 像素·35.28 cm × 26.46 cm·72dpi·JPG
- 小图:500 × 375 像素·17.64 cm × 13.23 cm·72dpi·JPG