重氢是原子核中多一个中子的氢。
A deuterium atom is a hydrogen with an extra neutron in its nucleus.
氚是氢的放射性形式，有时被称作超重氢。
It is a naturally occurring radioactive form of hydrogen, sometimes known as heavy hydrogen.
综述了芳杂环类多重氢键分子钳人工受体研究进展。
This paper reviews the recent advance in heteroaromatic molecular tweezers involving multiple hydrogen-bonding sites.
融合重氢同位素需要大量能量，部分原因是因为原子核带正电并相互排斥。
Fusing heavy hydrogen isotopes requires lots of energy, partly because the nuclei are positively charged and repel each other.
它是氢气的一种形态，它自然发生放射，有时被人们称为重氢。
It is a naturally occurring radioactive form of hydrogen, sometimes known as heavy hydrogen.
最流行的聚变做法是将两个氘原子结合在一起——氘是带有一个额外的中子的重氢。
Most current fusion efforts look to combine two atoms of deuterium, a heavier version of hydrogen with an extra neutron.
例如苯乙酮和氘苯乙酮气味分子具有相同的分子结构，其中一个是用称为重氢的氘原子构成。
Odorants such as acetophenone and deuterated acetophenone, for example, have the same molecular structure; one is just built from a slightly heavier hydrogen atom, known as deuterium.
研究表明，月球岩石中的水资源比地球水资源包含更多的重氢元素，意即月球水有可能来源于彗星。
Moon rocks show that lunar water has more heavy hydrogen than does terrestrial water, indicating a cometary origin.
研究表明，月球岩石中的水资源比地球水资源包含更多的重氢元素，意即月球水有可能来源于彗星。
Moon rocks show that lunar water has more heavy hydrogen than does terrestrial water, indicating a cometary origin. Christopher Intagliata reports The Apollo moon missions ended almost 40 years ago.
数据显示月球水比地球水包含更多的重氢元素，并与海尔·波普彗星、百武彗星及哈雷彗星更为接近。
They found deuterium at higher levels than it's found in Earth water-but at levels similar to the comets Hale-Bopp, Hyakutake and Halley.
三重氢照明被用在完全黑暗状态，而视觉纤维（自动调节）用在白天或者可以说在有外界光线的情况下。
The Tritium illuminates the aiming point in total darkness, and the fiber-optic self-adjusts reticle brightness during daylight according to ambient light conditions.
科学家用到了一种叫离子显微镜的仪器，来比较月球岩石上氢的含量与重氢含量（重氢比普通氢多带有一个中子）。
The researchers used what’s called an ion microscope to compare the amount of normal hydrogen in the moon rocks to the amount of the hydrogen isotope deuterium, which carries an extra neutron.
重水因含重氢而得名。重氢是氢原子的一种，其原子核中含有一枚中子，加之正常氢元素中的质子，重量为一般氢原子的两倍。
Heavy water gets its name because it contains deuterium, a form of hydrogen that has a neutron in its nucleus as well as the usual proton and thus weighs twice as much as the ordinary sort.
重水因含重氢而得名。重氢是氢原子的一种，其原子核中含有一枚中子，加之正常氢元素中的质子，重量为一般氢原子的两倍。
Heavy water gets its name because it contains deuterium, a form of hydrogen that has a neutron in its nucleus as well as the usual proton and thus weighs twice as much as the ordinary sort.
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