The Grain rain signals the end of cold weather and a rapid rise in temperature.
谷雨标志着寒冷天气的结束以及气温的快速上升。
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。
In the end, the reasons of higher transpiration rate and lower canopy temperature of cold type wheat were discussed.
最后，讨论了冷型小麦蒸腾速率高、冠层温度低的原因。
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