采用室内模拟氨挥发和模拟降雨土柱淋洗方法，研究了NDSA（饱和铵贮库）施肥法对降低氨挥发和氮素淋失的作用。
The effects of a new fertilization method-NDSA(nitrogen depot with saturated ammonium) on the loss of nitrogen from ammonia volatilization and N leaching were studied by imitation experiments.
通过对合成氨变换工段循环热水系统以饱和塔出口半水煤气温度最大为目标函数进行优化计算，证明本文方法是成功的。
The new method has been successfully applied to the optimization of the flowrate of circulating water for the CO shift section in ammonia synthesis.
在氨饱和器焊接中采用钨极氩弧焊与焊条电弧焊相结合的焊接方法，重视焊前清理和焊接线能量控制，既保证焊接质量又提高生产效率。
Applied GTAW and SMAW to weld Ammonia Saturator with emphasis on preweld treatment and controlling welding heat input, high welding quality and efficiency were reached.
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