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介绍了尿素“４改６”工程改造及运行情况。结果表明，该技改工程具有投资少、建设周期短、节能降耗、经济效益明显等特点。
Introduced the urea “4 to 6” engineering transformation and operation. The results show that the project has less investment, short construction period, energy saving, obvious economic benefits and so on.