sludges

常见例句

用作名词 (n.)

• A lot of sludge was scooped out of the base of the river.
  从河底中挖出了许多淤泥。
• The trickling filter and activated sludge efficiencies cited required primary sedimentation and effluent circulation.
  列举的生物滤池与活性淤泥法的效率就需要初次沉淀和回流。
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