chlorinated diphenyls

例句：

1. 1. The chemicals used in this processare highly toxic and should be handled withcare.
   这种工艺中使用的化学品具有高度毒性，需要小心处理。
2. 2. Chlorinated diphenyls havebeen found to have harmful effectson the environment.
   氯化二苯被发现对环境有害。
3. 3. The use of chlorinateddiphenyls has been banned in manycountries due to their potential health risks.
   由于潜在的健康风险，许多国家已经禁止使用氯化二苯。