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scourings造句

造句2.44W

"Sewage sludge" means sludge arising from urban effluent treatment plant and includes pretreatment waste, scourings and unstabilised sludge.

scourings造句

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.

标签:造句 scourings