1. Correlation Technique and Product to diminish perniciousness of cigarette. 降低卷烟危害性的相关技术及产品。
2. Though an ardent enthusiast for Europe in principle, his stint as an EEC commissioner in 1970-73 left him appalled by the "perniciousness" of its bureaucracy. 虽然他原则上是一个热情的欧洲狂热者，但他1970-73年之间在欧共体委员的工作却让他惊恐于它官僚的邪恶性。
3. This article mainly discusses the lasting organic pollutant dioxin and its formation, toxicity, source, formation mechanism, main perniciousness and preventive measure. 本文介绍了持久性有机污染物二恶英的结构、毒性、污染来源、形成机理、主要危害和预防措施。
