SO42- and NO3- could improve the reduction current greatly.
的加入使还原电流有较大幅度的提高。
Results show that the sea cucumber polysaccharide contains SO42-, and is a kind of mucoitin sulfate.
研究表明，长岛刺参多糖含有硫酸基，为硫酸黏多糖；
The sulfate radical ion (SO42-) has two actions in concrete: exciting FC admixture and corroding concrete.
指出硫酸根离子（SO42 -）在混凝土中起到了激发FC掺和料及腐蚀混凝土的双重作用。
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