主要利用其燃烧反应产生可见光、红外辐射、高热、高压气体、气溶胶烟幕和声响等效应的弱爆炸性物质。属于低速炸药。烟火药在军事和工业、农业、交通、运输业及电影摄制等方面都有广泛用途。
烟花爆竹的安全首先取决于烟火药剂配方的科学合理与满足环保安全的要求。
The safety of fireworks and firecrackers lies on scientific and rational pyrotechnic compositions and satisfaction to the requirements of environmental protection and safety firstly.
利用瞬态光谱辐射仪分析了火工烟火药剂燃烧火焰辐射光谱分布，介绍了多光谱辐射测温技术的工作原理。
The radiation spectrum of pyrotechnics' burning flame was analyzed using transient spectrum radiometer. The working principle of multi-spectral thermometry was described.
我们爱她，因为所有的蟒蛇和烟火药剂和红色乙烯适合，她还是觉得猫喜欢上一个人，我们可以盘大约有男孩一篮面包它执着在橄榄园。
We love her because for all the pythons and pyrotechnics and red vinyl cat suits, she still feels like someone we could dish with about boys over a basket of bread sticks at the Olive Garden.
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