池子里满是淤泥和绿色的污水。
“下水道淤泥”，是指经城市污水处理厂产生的淤渣，包括预处理的废物、污垢和性质不稳定的淤泥。
"Sewage sludge" means sludge arising from urban effluent treatment plant and includes pretreatment waste, scourings and unstabilised sludge.
饮用水、污水和淤泥处理技术和水系统管理。
Potable Water, Wastewater, and Sludge treatment technology and system management;
品目38.25 所称“下水道淤泥”，是指经城市污水处理厂产生的淤渣，包括预处理的废物、刷洗污垢和性质不稳定的淤泥。
For the purposes of heading 38.25, "sewage sludge" means sludge arising from urban effluent treatment plant and includes pretreatment waste, scourings and unstabilised sludge.
品目38.25 所称“下水道淤泥”，是指经城市污水处理厂产生的淤渣，包括预处理的废物、刷洗污垢和性质不稳定的淤泥。
For the purposes of heading 38.25, "sewage sludge" means sludge arising from urban effluent treatment plant and includes pretreatment waste, scourings and unstabilised sludge.
应用推荐