本文叙述了一个适用于各种单次瞬态过程的频谱分析仪的工作原理和实验结果。

The principles and experimental results of a frequency spectrum analyzer for all types of single transient processes are described in this paper.

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文章简要叙述了铁路工务部件新型钢轨急救保护器的研制过程，以及设计思想、计算方法和实验手段。

The article briefly introduces research and development process of the new type rail break down emergent protector, its design concepts, calculating method and experiment measures.

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叙述了瓦斯爆炸过程中火焰与超压的实验研究情况，介绍了瓦斯爆炸过程中火焰与超压之间的关系。

The relationship between flame speed and superpressure in gas explosion is studied on the basis of experiment.

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