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汉语拼音：yū ní

河流、湖沼、水库、池塘中沉积的泥沙，所含有机物多，常呈灰黑色。

1. 犹污泥。

   南朝 梁武帝 《净业赋》：“淤泥不能污其体，重昏不能覆其真。” 唐 方干 《东山瀑布》诗：“不缘真宰能开决，应向前山杂淤泥。” 宋 周敦颐 《爱莲说》：“予独爱莲之出淤泥而不染，濯清涟而不妖。” 魏传统 《长征诗草·过阿西草原》：“脚踏水草地，淤泥软绵绵。”

• 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。

• He grabbed into the ooze and came up clutching a large toad.

  他把手伸进淤泥里捞摸，结果抓上来一只巨大的蟾蜍。

• The boat beached on a mud flat.

  船搁浅在一片淤泥滩上。

• The pond was full of mud and green slime.

  池子里满是淤泥和绿色的污水。

• During the annual floods the river deposits its silt on the fields.

  每年河水泛滥时都会在田野上沉积一层淤泥.

• The river deposited silt at its mouth.

  河口沉积了淤泥.

• The harbor is now entirely silted up.

  那港口现在已完全被淤泥所塞.

• The lake was almost solid with silt and vegetation.

  湖里几乎快被淤泥和植物填满了。

• The river was in those days choked up with silt.

  那时候这条河被淤泥阻塞着.

• Each was a composite of three scoops of silt.

  每个样品由三样勺河床淤泥组成.

• He stepped forward, hit foot sand into the ooze.

  他向前一迈步, 脚陷进了淤泥之中.

• The old harbor is now all silted up.

  旧港现在已完全被淤泥堵塞了.

• The passage is silted up.

  水道被淤泥堵塞.

• The harbour has silted up.

  这海港已为淤泥淤住了.

• 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.