The model is trained with the operation data of a large scale ammonia plant. The results calculated by this model agree well with industrial operation data.

该模型是以BP网络为基础的多层网络，用实际操作数据对该模型进行了训练，获得了较好的过程模拟效果，该模型可用于大型氨厂转化系统操作分析。

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The newspaper said it had seen documents in which the plant said it stored large amounts of anhydrous ammonia, but the worst scenario envisaged was a release of ammonia gas that would harm no-one.

BBC: Texas Waco fertiliser plant blast causes many casualties