1)biological half-life生物半衰期
1.Determination of the biological half-life of recombinant hirudin in rabbits;重组水蛭素在家兔体内生物半衰期的测定
2.The Prognostic Value of Serum Alpha Fetoprotein s Biological Half-life in Tumor Recurrence after Liver Transplantation for Hepatocellular Carcinoma;肝癌肝移植术后血清AFP生物半衰期对肿瘤复发的预测价值
3.The BCF, biological half-life and bioconentration curve of heavy metal in Crassostrea plicatula were gained.应用实验生态方法研究了褶牡蛎对8种常见的重金属生物富集动力学特性,得出了褶牡蛎对重金属的生物富集系数、生物半衰期以及生物富集曲线。
英文短句/例句
1.The Prognostic Value of Serum Alpha Fetoprotein s Biological Half-life in Tumor Recurrence after Liver Transplantation for Hepatocellular Carcinoma;肝癌肝移植术后血清AFP生物半衰期对肿瘤复发的预测价值
2.radioactive half life放射性物质的半衰期
3.Half-life determination of fission products ~(94)Y and ~(95)Y裂变产物~(94)Y和~(95)Y半衰期的测定
4.Effects of anesthesia and surgery on the half-life of plasma sodium salicylic in laboratory animals麻醉和手术对实验动物血浆药物半衰期的影响
5.Quantitative Structure-Pharmacokinetic Relationship of Quinolones Half Life喹诺酮类药物半衰期的定量构动关系研究
6.The half-life of francium is 22 minutes.钫的半衰期是22分钟。
7.half-life of recurrent selection process轮回选择过程的半衰期
8.Studies on Animal Aging and Cell Senescence Model Induced by D-galactose;D-半乳糖诱导生物体衰老与细胞衰老模型的实验研究
9.By that is meant the time which elapses before half of the existing atoms have disintegrated or exploded.这里所指的半衰期是现存原子的一半发生衰变或爆炸所消耗的时间。
10.Measurement of the ～7Be Electron-capture Decay Rate Variation in Metallic Environments and Production of ～(15)O Secondary Beam;低温金属环境中～7Be半衰期的研究和～（15）O次级束的产生
11.Half-lives of the newly synthesized nuclei in~(263)Hs and ~(260)Bhα-decay chains新核素~(263)Hs,~(260)Bh及其α衰变链上核素的半衰期
12.Radioactive substances will speed up their dissipation to such a degree that what had hundreds of years of half life will simply cease to exist.放射性物质将加速其解体，使得还有好几百年（射性）半衰期物质完全停止存在。
13.The time required for half the nuclei in a sample of a specific isotopic species to undergo radioactive decay.半衰期放射性样品的原子核经历一半放射性衰变所需要的时间
14.It is not necessary to wait until half of a sample has decayed in order to measure the halflife.不必一直等到样品衰变一半之后才测量它的半衰期。
15.Half-life of radioactive element carbon-14 is 5730 year.放射性元素碳-14的半衰期为5730年。
16.The half life of the uncharged pion is 6×??.中性兀介子的半衰期为6×?得搿?/UK>
17.It has a half-life of about 41/2 billion years.它的半衰期大约为45亿年。
18.A very useful quantity is the half-time for the reaction.一个很有用的量是反应的半衰期。
相关短句/例句
tritium[英]['triti?m][美]['tr?t??m]生物半衰期
1.The half time of tritium excretion of 23 workers are 5.短期观测了 2 3名工作人员氚生物半衰期 ,其范围为 5 5～ 14 8d ,平均值 9 1d ;中期观测了 5名工作人员氚生物半衰期 ,其范围为 7 6～ 9 4d ,平均值为8 5d。
2.The half-time of tritium excretion of 23 workers are 5.短期观测了 2 3名氚生物半衰期 ,其范围为 5。
3)biological half-life生物半排期，生物半衰期
4)BHL生物学半衰期
5)physical half-life物理半衰期
6)drug eliminated half life药物消除半衰期
1.METHODS The drug concentration of etoposide was determined by HPLC, drug eliminated half life was calculated by one point method and CYP3A enzyme activity was determined by urine sample method.方法采用HPLC测定药物浓度,一点法计算药物消除半衰期,尿样法测定体内CYP3A酶活性。
延伸阅读
生物半衰期分子式：CAS号：性质：在生物（人和动物）体内某一药物的药量或血药浓度降低一半所需的时间，为区别于同位素的半衰期。现今主要是指消除半衰期。不同药物的生物半衰期差异极大，短的仅0.5h（青霉素G），长的可达9h（洋地黄毒）。了解药物的生物半衰期，可预期多次给药到达稳态血药浓度的时间，也可估计一次给药后药物从体内基本消除的时间，故在制定给药方案时具有重要意义。
