几个星期前,伊朗宣布邀请了若干国家参观纳坦兹附近的铀浓缩设施和靠近阿拉克的重水设施。
Several weeks ago, Iran announced it had invited a number of nations to tour the uranium enrichment facility near Natanz, and the heavy water facility near Arak.
人们普遍认为,中国是一个面临严重水资源短缺的国家。
It is widely accepted that China is a country faced with severe water shortages.
重水之所以重是因为水中氢的重量是普通氢的两倍(它的原子核中有一个质子和一个中子,而不仅仅是一个质子)。
Heavy water is heavy because the hydrogen in it weighs twice as much as ordinary hydrogen (it has a proton and a neutron in its nucleus, instead of just a proton).
只要你的饮食总体上是均衡且健康的,你就能在注意卡路里的摄取量之后减重并且一直保持在一个体重水平。
As long as your diet is balanced and healthy overall, you can lose weight and keep a good amount of it off if you watch the calories.
图13:通过描绘缺陷“严重级别”与关闭“时间”关系的图表,我们可以看到一些严重水平为1的缺陷已经花时间解决了。
Figure 13: By graphing "Severity" of defect against "time" to close, we see that some Level 1 defects have taken time to be resolved.
研究表明,造成一种严重水稻疾病的真菌实际上并不是唯一的案犯。这一研究对保护水稻这种主要作物和人类健康都有影响。
Fungi blamed for a serious rice disease are in fact not the sole culprits, according to findings that have implications for protecting both a major crop and human health.
人类文明的重点将移向两极,因为那里足够凉快适宜农作物生长,而且会有持续降雨(尽管这会带来严重水灾)。
The focus of civilisation moves towards the poles, where temperatures remain cool enough for crops, and rainfall - albeit with severe floods - persists.
在半重水的水分子中,一个氢原子(H)被一个称之为氘(D)的氢原子的同位素所取代。
In a semiheavy water molecule, one hydrogen atom (H) is replaced with a heftier version called deuterium (D).
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.
英国市民很少受到严重水短缺的影响,因此无法容易的理解他们的购买行为和别国水资源短缺的联系。
In the UK, citizens are rarely exposed to the direct effects of severe water shortage and cannot readily see the links between their purchases and water shortage in other countries.
月球的低重力也意味着由普通氢气和氧气组成水将会比重水更快的消失,可能导致在月球上水的氘含量。
The moon's low gravity also means that water composed of regular hydrogen and oxygen will escape quicker than heavy water, perhaps leading to a concentration of deuterium in the water of the moon.
这些都是超快速修理好东西,或者“山重水复疑无路”时的好选择。
These are great for super quick repairs, or "when all else fails" situations.
而且我们不能望见阿瑞克的简易重水装置那里发生了什么,是否用于和平目的。
And we cannot remotely see what is happening at [a] heavy water facility under construction at Arak, and whether that is being used for peaceful purposes.
但平均来看,在36个月内,几乎又都恢复到原来的体重水平。
But by 36 months, they had gained nearly all of it back, on average.
我们只有现在采取措施解决这一问题才能避免未来世界范围内的严重水资源缺乏。
Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on.
如论如何,因为氘,在所谓的“重水”里,在一些核反应堆设计里是用于中和中子的,它和普通的水在一个大的程度上是分开的。
However, because deuterium, in so-called "Heavy-Water," is used to moderate neutrons in some nuclear reactor designs, it is separated from regular water on a large scale.
但严重水土流失区内的水土流失却是诱发贫困的主要原因之一。
But water and soil loss can lead to poverty in the area of serious water and soil loss.
患心脏病和水肿的人不要吃含水量较多的西瓜、椰子等,以免增加心脏负担和加重水肿。
The risk of heart disease and edema of the people do not eat with high water content, coconut, watermelon, so as not to increase the burden on the heart and aggravated edema.
在这项工作中,一种紧沟天窗与混合燃料集束压力重水反应堆的概念被调研。
In this work, a tight pitch lattice and mixed fuel assemblies pressured heavy water reactor concept was investigated.
因而,在严重水分胁迫下有较高的存活率,并能维持一定的生物量。
Therefore, It had a higher survival rate, and could maintain a higher biomass under severe water stress.
板式换热器在重水系统中的应用对研究堆的设计具有一定的参考价值。
The application of plate heat exchanger in heavy water system gives good experience for future research reactor design.
本文叙述了在更换研究性重水反应堆内壳中的辐射防护方法、辐射监测与评价。
This paper describes radiation protection methods, radiationmonitoring and assessments in replacement of the HWRR reactor vessel.
本文对双面加热的圆弧形窄缝通道内重水的自然对流进行了模化试验和数值模拟。
We studied the natural convection in narrow double-side heating arc by mock-up tests and numerical simulation in this thesis.
利用少群扩散理论和控制棒与靶件的等效扩散处理方法进行了高浓铀-重水栅的分析计算。
An analysis of highly-enriched uranium-heavy water lattice was made recently using few-group diffusion theory and the equivalent diffusion of control rods and target assemblies.
采用快速失重水分测量装置确定了富矿粉和焦粉的极限失重温度。
The limit weight-loss temperature of ore fines and coke are determined by rapid weight-loss measuring devise.
文章涉及中国先进研究堆重水浓缩系统的功能、工艺方案和流程设计及系统设计的特点。
The function, the scheme and the flow design of heavy water concentration system and its characteristic for China Advanced Research Reactor are introduced in the paper.
在吸、放氘达到动态平衡条件下,实时收集了重水电解池中钯电极的中子衍射数据。
Neutron diffraction data of palladium electrode in heavy water electrolysis cell have been collected under the balance condition of absorption and evolution of deuterium.
BMI是计算用来评价男性或女性的体重水平的指数。
BMI是计算用来评价男性或女性的体重水平的指数。
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