EDTA常用于食品工业中以防止金属离子引起的变色。

___EDTA is commonly used in the food industry to prevent discoloration caused by metal ions.

这款洗发水添加了EDTA来保持成分稳定。

This shampoo contains ___EDTA to maintain ingredient stability.

医生建议使用EDTA来治疗汞中毒。

The doctor suggested ___EDTA treatment for mercury poisoning.