There was no obvious changes of urea nitrogen content in each group (P > 0.05).
各实验组小鼠的尿素氮含量未见明显变化（P>0.05）。
The system is used in the ammonia synthesis section and the urea unit at Guizhou Chishui Natural Gas Chemical Group Co. , Ltd with good results.
该系统在贵州赤天化集团有限责任公司合成、 尿素装置中应用，效果良好。
RESULTS: The albumin synthesis (13.75>2.179, P<0.05) and urea level (7.27>2.179, P<0.05) had fluctuating changes in one week, and cocultured group had higher albumin synthesis and urea level.
共同培养组与单纯肝细胞培养组在白蛋白分泌（13.75> 2.179，P<0.05）及尿素合成功能（7.27>2.179，P<0.05）存在显著性差异，共同培养组明显高于单纯培养组。
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