The new technology for the preparation of cryolite from fluosilicic acid and ammonium hydrocarbonate is introduced.介绍了氟硅酸、碳酸氢铵制备冰晶石的新工艺.Bites suction cup the toxin and apply 3 % ammonia solution or 5 % sodium hydrocarbon...

n.碳酸氢盐，酸性碳酸盐...

hydrocarbonate的音标：hydrocarbonate的英式发音音标为：[haɪdrə'kɑ:bəneɪt]hydrocarbonate的美式发音音标为：[haɪdrə'kɑbəneɪt]...