The conversion film is probably constituted of amorphous and pored alloying tannate chelate.

这膜很可能是由有一定孔隙的非晶态合金单宁酸膜层构成.

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯丙烷与咪唑进行高分子应，合成了以聚硫醚为主链、侧链带有咪唑团的螯合树脂（简称PSIM）。

3, A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.

在洗衣粉中掺入螯合剂，例如次氮酸酯（NTA）或者是二胺四酸酯（EDTA），这些螯合剂易于形成水溶性的金属螯合物。