We here report experimental results on effects of magnetic field on the urea synthesis from NH3 and CO2 in a glass-bead ......

用流程模拟软件对尿素生产的操作数据进行模拟计算，计算出所有物流的强度，压力，流量和组成，这些数据能够准确地反映工艺状况，通过对模拟......