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- The fumarate ion participates in several important metabolic pathways, e.g. the Krebs cycle, purine pathways, and the urea cycle. 延胡索酸分别参与多种重要的代谢途径，如卡尔文循环、嘌呤途径和尿素循环。
- Urea cycle disorder (UCD) is one of inborn error diseases.Citrullinemia is the most common disease (1/57000) among them, followed by argininosuccinic acidemia (ASA) (1/70000). 摘要尿素循环功能障碍为先天性代谢缺陷的一类，瓜胺酸血症为最常见的一种，发生机率为1/57000；
- It is based upon a naturally occurring enzyme called urease that essentially reverses the urea cycle by breaking down urea into metabolites that include ammonia and hydroxyl ions. 它是根据自然产生的尿素酶，基本上扭转了尿素循环打破尿素成氨的代谢物，包括羟基离子。
- Disorder of the urea cycle metabolism 尿素循环代谢病症
- Clinical and laboratory screening studies on urea cycle defects 尿素循环障碍的临床和实验室筛查研究
- Clinical and laboratory study on late-onset urea cycle defects 迟发型尿素循环障碍的临床与实验室研究
- The pedal of a cycle is attached to a crank. 自行车的踏板与曲柄相连。
- Study on Relation between Nitric Oxide Synthesis and Hepatic Urea Cycle on Condition of Aerobic Exercise 有氧运动条件下一氧化氮合成与肝脏尿素循环之间关系初探
- It's easier to cycle with the wind behind you. 顺风骑车省力。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- The seasons of the year make a cycle. 一年四季构成一个循环。
- The business cycle experienced a sudden down. 商业周期经历了突然的萧条。
- This is the cycle of economic booms and slumps. 这是经济繁荣和经济萧条的周期变化。
- Cycle across America? Sounds a bit dodgy to me. 骑自行车横越美国? 听起来有些冒险。
- The pedals of a cycle are attached to a crank. 自行车的踏板与曲柄相连。
- The pedals of a cycle are attached to the crank. 自行车的踏板与曲柄相连。
- Arginine: Too much of a good thing may be bad! 精氨酸:应用太多好事会变成坏事!
- 84g/L。As one of the nonprotein amino acids, citrulline plays important role in the urea cycle. 瓜氨酸是一种非蛋白质氨基酸，它在尿素循环中起着重要的作用。
- An amino acid,C5H12N2O2,formed by hydrolyzing arginine and important in the formation of urea. 鸟氨酸一种由精氨酸水解而成的并在尿素合成中起重要作用的氨基酸，C5H12N2O2
- Her latest stunt is riding a motor cycle through a ring of flames. 她的最新特技表演是骑摩托车钻火圈。
