sewage preliminary basinsewage preliminary tank污水: sewage; slops; effluent; dra ...预: in advance; beforehand沉: sink池: pool; pond预沉池: pre-sedimentation tank; preliminary sedimentation tank下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:污水预沉池,即可在微信中查询翻译