老年、少尿或无尿型ARF、高分解型ARF、严重感染、MOF、呼吸衰竭、肝功能衰竭、透析前尿素氮较高和透析较迟为与死亡有关的危险因素。
Risk factors included old age, oliguria or anuria ARF, hypercatabolism ARF, severe infection, MOF, respiratory failure, liver failure, high blood urea nitrogen, and delayed dialysis.
制备得到的BN为无定形态，合成率较高，残留尿素分解缩聚物较少。
The amorphous BN obtained had a higher yield and less residual condensation product of urea decomposition.
该模型的计算值与实验数据和文献数据较一致，可用于尿素合成反应进程中、达化学平衡及高压分解时的气液平衡计算。
The results of calculation are accordant with the data taken from experiments and documents, which can be used for vapor-liquid equilibrium calculation in the course of urea reaction, chemical eq.
应用推荐