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).
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）。
Smoke lay heavy on the far side of the water.
水面对岸悬浮着黑沉沉的烟雾。
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。
In addition to the daily burden of carrying heavy water loads, they run the risk of being physically assaulted when seeking water.
除了每天承受水的重负之外，她们冒着在取水时身体遭受攻击的危险。
While explaining stress management to an audience, the lecturer raised a glass of water and asked ’How heavy is this glass of water?
当向听众解释压力管理的时候，讲师拿起一杯水问道：这杯水有多重？
But Sunday brought a downpour so heavy that high water covered the road leading into Crawford.
但是周日的雨特别大，雨水淹没了通往克劳福德镇的路。
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。
Even happier is their neighbour Oum Sok ha, who specialises in recycling glass jars and bottles and so is a heavy water-user. Her daily profit has increased by 2,000 riels.
感到更高兴的是她们的邻居OumSokHa，她主要从事玻璃瓶的回收，所以她更需要用水，她每天的利润已经增加了2,000里尔。
Even happier is their neighbour Oum Sok ha, who specialises in recycling glass jars and bottles and so is a heavy water-user. Her daily profit has increased by 2, 000 riels.
感到更高兴的是她们的邻居OumSokHa，她主要从事玻璃瓶的回收，所以她更需要用水，她每天的利润已经增加了2,000里尔。
Sick of holding your heavy water bottle while you go on hikes in the desert?
你是否已经厌倦了在沙漠远足时带着沉重的水壶？
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.
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。
When the collected water becomes heavy enough, the water droplet falls to the earth as rain.
水气凝结到一定程度就形成了小水滴，其重量足以使它落到地上，即为雨。
Transportation costs also are a major factor in food prices, especially for water-heavy vegetables such as romaine lettuce.
运输的价格是影响食品价格的一个重要因素，对于富含水的蔬菜，如直立莴苣，更是如此。
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.
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。
How heavy is this water melon?
这个西瓜有多重？
The day we visted, officers were talking about an incident that had occurred just that morning: a heavy water-bag had been dropped from the fifth tier of the cellblock down onto another inmate.
长官说起我们去的那天早上发生的一个事件：一个很重的水袋从5层的牢房走廊扔下砸到另一个犯人。
In July parts of the main shopping district were under water after heavy rainfalls.
今年7月暴雨过后，主商业区的一些地方就浸在水中了。
Meanwhile in May 2009, the Chalk River reactor started leaking heavy water and was again shut down.
也是在2009年5月，乔克里弗反应堆开始出现重水泄露现象，被迫再次关闭。
Natural sinkholes generally form when heavy, water-saturated soil causes the roof of an underground limestone cavity to collapse, or when water widens a natural fracture in limestone bedrock.
一般自然灰岩坑形成机理是由于有份量的水饱和土导致地下石灰岩洞顶层坍塌，或者由于水加宽了石灰岩床的天然裂缝而导致。
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.
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。
Lubricating grease: General grease or heavy water grease used for pump.
润滑脂：普通润滑脂或泵用重水润滑脂。
The application of plate heat exchanger in heavy water system gives good experience for future research reactor design.
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。
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.
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。
The results showed that the cause of renal failure only occupied 23.0% , and those of too heavy water load, pneumonedema, hyperkalemia and severe metabolic acid - base imbalance occupied 66. 2%.
结果：因肾功能衰竭而紧急腹透者仅占23．0％，而水负荷过重、肺水肿、高血钾、严重代谢性酸碱平衡紊乱占66．2％。
Under the normal condition use general lubricating grease, you had best use heavy water lubricating grease for pump if too much leakage loss.
正常情况下使用普通润滑脂，泄漏过大则最好使用泵用重水润滑脂。
Under the normal condition use general lubricating grease, you had best use heavy water lubricating grease for pump if too much leakage loss.
正常情况下使用普通润滑脂，泄漏过大则最好使用泵用重水润滑脂。
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