Avoid the hazard of a chemical emergency.

避免这些化学品造成危害。

youdao

Knowledge of basic chemical unit operations and hazard analysis methodology.

有良好的化工生产基本知识和危害分析知识。

youdao

Chemical waste is becoming a major public hazard.

化学废品已成为一种主要公害。

youdao

Chemical waste is becoming a major public hazard.

化学废品已成为一种主要公害。

youdao