柯林斯詞典sedimentation tank 1. N a tank into which sewage is passed to allow suspended solid matter to separate out 沉淀池 返回 sedimentation tank劍橋詞典a large container in which dirty or waste water is stored until all the solid material in it falls to the bottom and the water can be released for further treatment 沉淀池；沉積槽（一種大容器，其中貯存臟水或廢水，直到水中所有固體物質(zhì)沉淀到底部，水可放出供進一步處理） 返回 sedimentation tank