The paper introduces the parts and operating principle of the compressed air class A foam system and gets some conclusions about the application theory of the system through test.

本文介绍了压缩空气A类泡沫灭火系统的组成和工作原理，并通过试验得到了此系统的一些应用结论并提出了今后的研究方向。

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Superstructure compressed air (water supply, fire fighting, smoke detection) piping to be done air-tightness test.

上层建筑压缩空气管系(供水管、消防管、烟雾探测管)密性试验。

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Compared with beaker test, the model test was more pertinent to the engineering design and productive operation using the process of compressed air-agitated coagulation.

与烧杯试验相比，该模型试验对压缩空气搅拌混凝工艺的工程设计与生产运行更有针对性。

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