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- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一種放射性同位素,尤指碳14。
- The symbol for the isotope deuterium. 氘的化學(xué)符號同位素氘的符號
- Its most common form, or isotope, has 146 neutrons. 它最常見(jiàn)的形式或者同位素有146個(gè)中子。
- IS ~(40)Ca_(20) A STABLE ISOTOPE? ~(40)Ca_(20)是否穩定?
- Simmons: Get me a sample and some isotope readings. 弄些樣本和同位素讀數。
- Isotope shifts and hyperfine structure spectrum[J]. 引用該論文 馬洪良.
- Changes of nuclear mass and nuclear size cause isotope shifts. 原子核質(zhì)量和大小的不同引起同位素移動(dòng)。
- The isotope ratio is directly used for comparing oils or gases. 同位素比率直接用于比較各種石油或天然氣。
- An hour later the next lighter stable isotope, xenon 134, appeared. 一小時(shí)之后,略輕一點(diǎn)的穩定同位素氙134出現。
- This indium isotope was created at the same time as the earth. 這種銦同位素與地球產(chǎn)生在同一時(shí)代。
- The most abundant isotope of hydrogen,H1,with atomic mass1. 氘氫的數量最豐富的一種同位素,H1,原子質(zhì)量為1。
- The atmospheric helium isotope ratio: Is it changing? 大氣氦同位素比率在變化嗎?
- Calculation of oxygen isotope model temperature in minerals. 礦物氧同位素模式溫度計算。
- A radioactive isotope of thorium with mass number228. 射釷釷的放射性同位,質(zhì)量數為
- The most abundant isotope of hydrogen, H1, with atomic mass1. 氘氫的數量最豐富的一種同位素,H1,原子質(zhì)量為1
- This creates regions with geographically similar isotope values. 這將形成地理上同位素構成類(lèi)似的區域。
- The isotope does occur in nature but only extremely rarely. 釙的同位素在自然界中的確存在,但是相當罕見(jiàn)。
- A radioactive, inert, gaseous isotope of radon, with a half-life of 3.92 seconds. 錒射氣氡的一種放射性的,惰性的和氣態(tài)的同位素,其半衰期為3.;92秒
- An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of2.014. 氘氫的一種同位素,在其原子核內有一個(gè)質(zhì)子和一個(gè)中子,其原子重量為2。014
- A radioactive isotope of iodine widely used as a tracer in medical diagnosis. 放射性碘碘的一種放射性同位素,廣泛地用于醫學(xué)診斷作為追蹤劑