The experiment focuses on the temperature of the gas in the hot end heat exchanger, the temperature decline of the cold end of the pulse tube and pressure amplitude.

进行三个脉冲管与行波型热声发动机的配合实验，着重研究了热端气体温度、冷端温降和压力振幅的变化规律。

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Study shows that the frequency of this kind pulsating combustor depends not only on the figure size of combustor but also on temperature distribution of hot gas in it.

研究表明，这种类型的脉动燃烧器的频率不仅与燃烧器的形状和尺寸有关，而且与燃烧器内热气体温度分布有关。

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Design of a complete set of anaerobic fermentation device. It contents an anaerobic reactor, a constant temperature system by circulating hot water, and a gas collection device.

设计了整套厌氧发酵试验装置，它包括发酵主体反应器、水浴恒温循环系统、集气装置三大部分。

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