柯林斯词典sedimentation tank 1. N a tank into which sewage is passed to allow suspended solid matter to separate out 沉澱池 返回 sedimentation tank剑桥词典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 沉澱池；沉積槽（一種大容器，其中貯存髒水或廢水，直到水中所有固躰物質沉澱到底部，水可放出供進一步処理） 返回 sedimentation tank