放射衰变;
Alpha particles positively charged helium nuclei obtained from natural radioactive decay.
粒子是从天然放射性蜕变得到的带正电的氦核.
来源:互联网摘选The E-factor method for solving the equations of succesive decay in a radioactive series
放射性递次衰变方程的E因子解法
来源:互联网摘选It had been used for practical ends, to identify elements and to unravel radioactive decay chains.
已将其用于实践的目的, 去鉴别元素和阐明放射性衰变系.
来源:词典精选例句Such superheavy elements are usually very radioactive and decay away almost instantly.
这种超重元素通常是具有非常强的放射性,并且几乎立即会发生衰变.
来源:互联网摘选It is the product of radioactive decay ( see radioactivity ) and is used in helium dating.
氦 是由放射性衰变形成的,可用于氦年代测定法.
来源:网络文摘精选Unlike helium-4, it cannot be produced by radioactive decay.
与氦 - 4不同之处是, 氦-3不能由放射性衰变产生.
来源:英汉非文学 - 科技Rutherford first identified the action of probability in radioactive decay.
卢瑟福首先认识到几率在放射性衰变中的作用.
来源:词典精选例句The radioactive transformation giving rise to these electrons was known as beta decay.
产生这种电子的放射性变化,称为β衰变.
来源:词典精选例句Radon is a gas that comes from the radioactive decay of radium in rocks.
氡是来自岩石中镭辐射衰变而产生的一种气体.
来源:互联网摘选Alpha particles are positively charged helium nuclei obtained from natural radioactive decay.
α粒子是从天然放射性蜕变得到的带正电的氦核.
来源:词典精选例句Chemistry also uses calculus in determining reaction rates and radioactive decay.
化学也使用演算在确定反应速率和放射性衰变.
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