1.
Test method for electrostatic properties of plastic films--Half-life method
GB/T14447-1993塑料薄膜静电性测试方法半衰期法
2.
The measurement of the half-life of ~(151)Sm by liquid scintillation counter
液闪法测定~(151)Sm的半衰期
3.
Half-life:A New Way of Research into Virtual Learning Community
“半衰期”:虚拟学习社区研究的新方法
4.
Radiochemical Separation and Half-life Measurement of ～(132)I;
～（132）I放化分离方法的研究及半衰期测量
5.
The half-life of francium is 22 minutes.
钫的半衰期是22分钟。
6.
radioactive half life
放射性物质的半衰期
7.
half-life of recurrent selection process
轮回选择过程的半衰期
8.
Objective: To determine the numerical value of light dense of sodium salicylate by colorimetric analysis, and calculate its plasma half life.
目的:用比色法测定水杨酸钠的光密度值,并计算血浆半衰期。
9.
Endopeptidase Isozymes in Spirodela polyrrhiza Half-fronds during Senescence by Electrophoresis
凝胶电泳法研究紫萍半叶状体衰老期间的内肽酶同工酶
10.
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
11.
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
12.
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。
13.
Half-life of radioactive element carbon-14 is 5730 year.
放射性元素碳-14的半衰期为5730年。
14.
The half life of the uncharged pion is 6×??.
中性兀介子的半衰期为6×?得搿?/UK>
15.
It has a half-life of about 41/2 billion years.
它的半衰期大约为45亿年。
16.
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。
17.
Theoretical Evaluation on Expansion Ratio and Half-time of Foamed Asphalt
泡沫沥青膨胀率和半衰期的理论测算
18.
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