Since then all of our Departments new water purification facilities have used rapid filtration technology, providing the water supplies of our precincts with dependable sources of clean water.是什么意思_Since then all of our Departments new water purification facilities have used rapid filtration technology, providing the water supplies of our precincts with dependable sources of clean water.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句