nitrososubstitution

例句：

1. 1. The studyfound that nitrososubstitution wasa significant contributor to the formationof cancerous tumors.
   研究发现，亚硝基取代是形成癌症肿瘤的一个主要因素。
2. 2. The researchers discovered that nitrososubstitution could be used as a markerfor detecting environmental pollution.
   研究人员发现，亚硝基取代可以作为检测环境污染的一个标志。
3. 3. The process of nitrososubstitution is complex and requires careful monitoring toprevent any adverse effects.
   亚硝基取代的过程复杂，需要仔细监控以防止任何不良影响。