extra-pure water的用法和樣例：
例句
- Why do we need High Purity Water for cleaning and rinsing?
為什麼要用超純水作清洗和沖洗？ - In order to ensure the safety of hyper pure water used in medicine,the whole ultrapure water treatment equipment is composed by stainless steel,and sterilization must be installed.
為保證醫藥用超純水的用水安全，超純水的處理設備整個系統也都由全不鏽鋼材質組成，用水點之前必須安裝殺菌裝置。
