The topological research of photolysis half-lives of PCDFs adsorbed on spruce needles and fly ash surfaces
多氯代二苯并呋喃光解半衰期的拓扑研究
Application of modified Cp_EA-PLS to QSAR of direct photolysis half-lives of PAHs
修正Cp_EA-PLS用于多环芳烃光解半衰期QSAR的研究
The topological research of photolysis half-lives of PCDFs adsorbed on spruce needles and fly ash surfaces
多氯代二苯并呋喃光解半衰期的拓扑研究
4 The half angle of divergence ah should not exceed 9°, the tenth angle of divergence az should not exceed 14°.
光线强度的半衰减角应不超过9°，光线强度1/10衰减解应不超过14°。
The half-life of francium is 22 minutes.
钫的半衰期是22分钟。
radioactive half life
放射性物质的半衰期
half-life of recurrent selection process
轮回选择过程的半衰期
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。
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
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
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。
Half-life of radioactive element carbon-14 is 5730 year.
放射性元素碳-14的半衰期为5730年。
The half life of the uncharged pion is 6×??.
中性兀介子的半衰期为6×?得搿?/UK>
It has a half-life of about 41/2 billion years.
它的半衰期大约为45亿年。
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。
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
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
The measurement of the half-life of ~(151)Sm by liquid scintillation counter
液闪法测定~(151)Sm的半衰期
Measurement of ~(198)Auβ~--Decay Half-Life in Metal Au at Low Temperature
低温金属环境中~(198)Au半衰期的测量