There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry.
这有37讲，主要是质年代学、放射性同位球化学和稳定同位球化学。
Tritium is one of the mildest radioactive isotopes.
氚是辐射最和缓的放射性同位之一。
A series of tracer experiments using P32 as a tagger and the radioautography had been carried out.
应用P32放射性同位示踪试验和鱼体放射自显影,证实白鲫鱼种可以摄食和消化利用水绵。
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Even bananas contain trace amounts of a radioactive potassium isotope.
即使是香蕉都含有微量钾的同位素。
A radioactive isotope called tritium will remain in the waste water.
氚这种同位素无法被清除。
Over the years, scientists have analysed these meteorites and determined their age through radioactive dating.
近年来，科学家们分析了这些外来物通过同位素衰减测其年龄。
It also needed to be safe for the rhinos.
同时，此同位素还不能伤害犀牛本身。
Using radioactive isotopes, scientists discovered that trees share water and nutrients with others in need.
科学家利用同位素，发现树木会分享和营养给其他有需要的树。
They were injecting rats with radioactive isotopes and one of the techs got bit.
他们给老鼠注了同位素 但其中的一名技术员被咬了。
Bad news, it involves me digging up the radioisotope thermoelectric generator.
坏消息就是我得把同位素热电机挖出来。
One fossil is a reasonably complete, though fragmented, skull. Radioisotope dating shows it is 170,000 years old.
有一块化石是相当完整的头骨，虽然有裂痕。同位素年份测定显示它有17万年的历史。
In 2021, Professor James Larkin founded the Rhizotope Project, aimed at reducing rhino poaching by incorporating radioisotopes into rhino horns.
2021年，詹姆斯·拉金教授创立了“喇叭项目”，旨在通过往犀牛角中注入同位素来减少犀牛偷猎行为。
On my 12th birthday, I really wanted a titanium centrifuge so, you know, I could separate radioactive isotopes. Of course.
我12岁生日时非常想得到一个钛金属离心机，我就能分离同位素了。当然。
That's why radioactive isotopes spontaneously decay and eject subatomic particles and radiation in the process.
这就是为什么同位素会自发衰变并在过程中释亚原子粒子和辐。
A mildly radioactive isotope created naturally in the atmosphere by cosmic rays.
一种由宇宙线在大气中自然产生的轻微同位素。
These are radioactive isotopes, atoms with an unusually high amount of nuclear energy.
这些是同位素，即拥有异常高核能的原子。
Deuterium Deuterium is a heavy but non-radioactive isotope of hydrogen.
氘 氘是一种重但非的氢同位素。
Carbon-14 is a heavier, radioactive isotope of carbon that's much rarer than ordinary carbon.
碳-14 是一种较重的碳同位素，比普通碳稀有得多。
It was by three RTGs, or radioisotope thermoelectric generators.
它由三个 RTG（同位素热电发电机）组成。
Was it even possible to separate the radium from the pitchblende?
是否有可能将同位素从沥青共混物中分离出来?
And sure, I could choose to think about the fact that I'm warm...Because I have a decaying radioactive isotope riding right behind me.
当然了，我也可以想到，我之所以不冷了是因为我正在受到后面同位素热电机的辐。
This impact turns oxygen-18 into fluorine-18, a radioactive isotope that can be detected on a PET scan.
这一撞击将氧-18转化为氟-18，一种可在PET扫描中被检测到的同位素。
The radioactive isotopes they produced disperse in the atmosphere and can be detected thousands of kilometers away.
它们产生的同位素分散在大气中，可以在数千公里外被检测到。
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详细解释
有37讲，主要是
质年代学、放射性同位
球化学和稳定同位球化学。
示踪试验和鱼体放射自显影,证实白鲫鱼种可以摄食和消化利用水绵。
和营养给其他有需要的树。
