catalyst poison

例句：

1. 1. The engineer used the wrong catalyst and caused a serious poisoning incident.
   工程师使用了错误的催化剂，导致了严重的中毒事故。
2. 2.The research team discovered that the catalyst was contaminated with heavy metals, causing significant poisoning effects.
   研究团队发现催化剂被重金属污染，导致严重中毒效应。
3. 3. The factory had to shut down due to the catalyst poisoning, affecting hundreds of workers.
   由于催化剂中毒，工厂不得不关闭，影响了数百名工人。