“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.
用本发明方法处理会减少沥青质的沉降物和淤渣。
Treatment with the methods of this invention reduces asphaltene deposits and sludges.
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.
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