settling tank的用法和樣例：
例句
- Build a depositing tank on-site to deposit the sewage water before it is emitted into the existing drainage system.
現場(chǎng)砌筑沉淀池，以便將廢水沉淀后再排至已有的排水系統中。 - By this method of treatment the wastes are stored in a settling basin for the proper removal of solids.
當用這種處理方法時(shí)，廢水需先在沉淀池里停留。
