Brown dwarfs are balls of warm gas that lack the mass necessary to fuse hydrogen at their core, as stars can.
棕矮星是一些由炽热的气体组成的球，它们缺乏像行星那样足够的质量来进行氢的燃烧。
The authors analysed 340,000 years of oxygen and hydrogen isotope data from three ice core sites across East Antarctica, alongside isotope-enabled general circulation model results.
科学家们分析了340，000年的横跨东南极洲的三个冰芯地址的氢氧同位素数据，并与同位素启用整体循环模式系统得出的结果。
For decades, particle physicists have used the hydrogen atom as a benchmark for measuring the size of protons, which are part of the core of atoms.
几十年来，粒子物理学家们用氢原子作为基准衡量质子的大小。
Dr Marcy suspects that his new discovery, which has about 45 times the mass of the Earth, is composed of a rocky core surrounded by a thick envelope of hydrogen and helium gas.
马西博士怀疑，他的这个拥有地球质量四十五倍的新发现星体有一个岩层核心构成，并被一层很厚实的氢气与氦气层笼罩。
Nuclear experts say that radiation from the core of a reactor can split water molecules in two, releasing hydrogen.
原子能专家说，核反应堆堆芯的放射线能够把水分子一分为二从而产生氢气。
The plot: When Mother Earth's molten core stops spinning for unknown reasons, a team of scientists must go to the centre and detonate a hydrogen bomb to get it to spin again.
主要情节：当大地之母的核心不是什么原因停止转动时，一队科学家们必然要去中心并且要引爆它使它再一次转动。
Under such extreme conditions, which are found only in the core of stars, the hydrogen atoms will fuse, producing helium and vast amounts of energy.
在这种原本只能发生在恒星内部的极端条件下，氢原子将发生聚变反应而生成氦原子，同时释放出大量能量。
Red giants are hot enough to turn the helium at their core, which was made by fusing hydrogen, into heavy elements like carbon.
红巨星的温度足够高，可以将其核心中由氢聚变成的氦再转变为重元素，比如碳。
At around 3:30 p.m., shortly after TEPCO announced the venting, an explosion rocked reactor number 1. This is thought to have been caused by hydrogen from the core.
下午3点30，刚刚在东京电力公司宣布排气之后，一号反应堆发生爆炸，起因是堆芯产生的大量氢气。
For example, any violation of the expected symmetry between hydrogen and antihydrogen would rock physics to its core.
例如，任何违反氢和反氢之间对称的期望会动摇物理学的核心。
In Chernobyl the explosion was caused by excessive pressure buildup hydrogen explosion and rupture of all containments propelling molten core material into the environment (a "dirty bomb").
在切尔诺贝利，爆炸是因为压力过高，氢气爆炸，所有的容器爆裂，把熔融的(反应堆)核心物质撒向了环境中(一个“脏弹”)。
Adoption INTEL80C51 single chip microcomputer as control core for producing pure hydrogen, it can control production the craft with necessary interface circuit and power amplifier circuit.
采用INTEL 80c51单片机做为纯氢发生器的控制核心，配备必要的外围接口电路及功放电路对制氢生产工艺进行控制。
Passive autocatalystic hydrogen recombiner is a device for eliminating hydrogen in the containment of the nuclear power plant when severe accident or core melt accident occurs.
非能动氢气复合装置是核电站发生严重事故时用于消除安全壳内氢气的安全设备之一。
Nuclear reactions in such a star's core, the source of power for nearly its entire life, deplete the available hydrogen, then the helium.
恒星一生的能量来源，几乎都来自中心的核反应，过程中会耗尽所有可用的氢，然后是氦。
This practice is much more common with low hydrogen electrodes, since the core wire melts up inside the flux coating.
这种做法较为普遍，低氢焊条，因为融化的核心线内的通量涂层。
It has become what astronomers call a subgiant, or a star that has exhausted all of its hydrogen fuel in the core and is on its way to becoming a red giant.
它已经变成了天文学家所谓的‘亚巨星’，也就是说成为已经耗尽了核心中氢燃料的恒星，并且正在变成红巨星。
This occurs hundreds of billions of times every second in the core of stars like our sun, as hydrogen is converted into heavier elements like helium, releasing huge amounts of energy in the process.
在像太阳这样的恒心的内核里，这个过程每秒会发生上千亿次。在反应过程中氢原子转变成氦原子之类的更重的元素，并释放出巨大的能量。
Red giants are created when a star exhausts its supply of hydrogen at its core, with the result that the inner layer contracts and the outer layers expand, forming a redder and much larger star.
红巨星是当恒星核心的氢元素耗尽了的时候形成的，与此同时它的内部开始塌缩并且外部开始膨胀，构成了一个更红的更大的星星。
The generator is of water cooled stator winding, hydrogen cooled core and hydrogen cooled rotor type.
这台发电机是水冷定子绕组、氢冷铁芯和转子的氢冷型。
The Long March 5 has core stages fed by liquid hydrogen and liquid oxygen, another technology route to high specific impulse.
长征5有由液态氢和液态氧，另一种技术路线，高比冲美联储的核心阶段。
Using stable heat transferring theory, a thermo hydraulic model has been built, which has considered the influence of the core temperature and cooling hydrogen temperature.
采用稳态传热的理论，建立了考虑定子铁心温度的定子绕组温度水力模型。
That's because hydrogen peroxide soaks through the protective outer coating of enamel and into the softer layer of dentin underneath, irritating the nerve-rich dental pulp at the core.
这是因为过氧化氢会渗入釉质的外部保护层并进入牙质下面的较为柔软的一层，刺激神经组织比较多的牙髓。
That's because hydrogen peroxide soaks through the protective outer coating of enamel and into the softer layer of dentin underneath, irritating the nerve-rich dental pulp at the core.
这是因为过氧化氢会渗入釉质的外部保护层并进入牙质下面的较为柔软的一层，刺激神经组织比较多的牙髓。
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