In this paper,phosphate and sulphate were eliminateed by precipitating with soluble calcium,and then calcium ion was removed by NaF.是什么意思_In this paper,phosphate and sulphate were eliminateed by precipitating with soluble calcium,and then calcium ion was removed by NaF.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句