sanitarybelt卫生带sanitaryadj.卫生的；清洁的sanitary qualification卫生质量Sanitary Corps Reserve卫生队后备队sanitary accommodation卫生食宿处sanitary metal fitting卫生洁具金属配件sanitary landfill sits卫生填埋场sanitary sewer manhole污水管检查井sanitary hygiene rules卫生保健制度Sanitary garbage truck环保垃圾车sanitary landfill site卫生填埋场sanitary sewer networks污水管网