The determination of sulfur in thiolated chitosan resins with barium sulfate nephelometery was developed. 研究硫酸钡浊度法测定硫代壳聚糖树脂含硫量的方法。
There are the largest explored reserve maximum sulphur content on average and predominant exploration condition in this production base. 是我国已探明的储量最大,平均含硫量最高,开采条件优越的硫铁矿生产基地。