nontoxic chelate

例句：

1. 1.The nontoxic chelate was effective in removing heavy metals from the soil.
   这种无毒螯合物在土壤中有效去除重金属。
2. 2. The research team developed a nontoxic chelate to treat cancer patients.
   研究小组开发了一种无毒螯合物来治疗癌症患者。
3. 3. The use of nontoxic chelate in agriculture has been widely promoted.
   农业中使用无毒螯合物的推广已广泛进行。