Concentrations of deicer and anti-icer components previously observed in airport effluents have, at times, exceeded the toxicity levels shown in results of this study.

在报告的结果中，相同浓度的去冰冰分子的毒性程度，有时高于以往在场排放物观察到的化合物。

Two patterns of air plane engine inlet hot-air anti-icer are introduced in this paper, one is circumferential anti-icer, the other is double skin corrugated chord direction anti-icer.

摘要飞发冰对飞行安全具有十分重要的意义，对于热气冰系统，前缘冰器的结构型式对冰的效果影响很大。