单词 | sewage treatment |
例句 | DEFINITIVE EXAMPLES 权威例句〔sewage〕Chlorine is used in sewage treatment.氯被用于污水处理。朗文当代〔sludge〕Semisolid material such as the type precipitated by sewage treatment.烂泥,淤泥:半固态的物质,如污水处理后沉淀下来的那种物质美国传统〔upgrade〕The city is upgrading the sewage treatment plant.这个城市正在改造污水处理厂。韦氏高阶 |
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