n.头道粗纱,废纺粗纱
v.纺,轻捻,粗纺( slub的现在分词 )
Iron and aluminum compounds precipitate as a voluminous sludge.
铁和铝的化合物成为一种体积庞大的蓬松的游渣沉淀下来.
There was some sludge at the bottom of the tank.
油箱底有油泥。
All dumping of sludge will be banned by 1998.
从1998年起,将禁止所有倾倒淤泥的行为。