基本解释多聚磷酸同根派生 polyphosphoric相关词英汉例句Ammonium persulfate and sulfuric acid were used to turn completely the polyphosphoric acid into orthophosphoric radicals, which were then determined by spectrophotometry.可用過硫酸銨和硫酸將多聚磷酸全部轉化成正磷酸根,再用分光光度法測定其質量分數。polyphosphoric更多例句