In the process of producing ammonia, we use cascade control method to make the catalyst hotspots temperature stable, so as to increase the quality of production.

在氨肥厂生产氨的过程中，引用串级控制方式来对合成塔触媒层的热点温度进行稳定控制，以提高生产质量。

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In the process of producing ammonia, we use cascade control method to make the catalyst hotspots temperature stable, so as to increase the quality of production.

在氨肥厂生产氨的过程中，引用串级控制方式来对合成塔触媒层的热点温度进行稳定控制，以提高生产质量。

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