氮是一种不稳定的元素。
在不稳定的中东，以色列就是稳定的支柱。
In the unstable Middle East, Israel is the one anchor of stability.
这个地方的名字来源于克里克印第安语，指的是沼泽中常见的不稳定的浮动岛屿。
This place gets its name from a Creek Indian word, which refers to the unstable floating islands that are common within the swamp.
在这种情况下，顶极群落会是最脆弱和最不稳定的，因为它们可能需要数百年才能恢复到顶极状态。
In that case, climax communities would be the most fragile and the least stable, since they can require hundreds of years to return to the climax state.
在重质或不稳定的土壤和陡峭的斜坡上，浇注混凝土挡土墙效果良好，让其他墙成为不明智的选择。
Poured concrete retains walls work well in the heavy or unstable soil and steep slopes, making other walls inadvisable.
这种混合物是不稳定的，会迅速重新排列成一种稳定但仍然可逆的物质，这种物质被称为阿马多里产物。
This combination is unstable and quickly rearranges itself into a stabler, but still reversible, substance known as an Amadori product.
数学模型也揭示了食物网可能是不稳定的，顶级肉食性动物的微小改变会对整个生态系统产生巨大影响。
Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems.
我们与政客之间有种不稳定的关系。
There is an uneasy relationship between us and the politicians.
他没有考虑到自己不稳定的职业前景。
那些男孩子无法发动那辆性能不稳定的摩托车。
这种强劲的民族主义势力是一股强大和潜在的不稳定的力量。
This kind of fierce nationalism is a powerful and potentially volatile force.
我认为那里的形势是不稳定的。
她不情愿地援助了欧元区一些不稳定的成员。
如今不稳定的经济可能会催生更多这种小窍门。
Today's shaky economy is likely to produce many more such tricks.
他们生活在不稳定的平衡中，并且这是地球上最艰苦的环境之一。
They live in precarious balance and one of the toughest environments on earth.
对选民来说的确如此。但是，将企业建立在政府补贴的基础上也是不稳定的。
That's true for voters. But government subsidy is a wobbly foundation on which to build a business.
相反，随着直线下降的收入和不稳定的工作，不幸福的夫妻往往负担不起离婚。
Rather, with incomes plummeting and insecure jobs, unhappy couples often couldn't afford to divorce.
在风能不稳定的一些地区，需要供电事业公司或者能量储存系统来提供备用电能。
In areas where the wind dies down, backup electricity from a utility company or from an energy storage system becomes necessary.
当我们上飞机的时候，通常已经很累了，而拥挤的空间和不稳定的网络使工作更具挑战性。
We are usually tired already by the time we get on a plane, and the crowded space and unstable internet connection make work more challenging.
如果对它们的数量进行时间记录，就会发现它是很不稳定的——以不规则的周期急剧上升下降。
If their population is tracked through time, it will be seen to be particularly unstable—soaring and plummeting in irregular cycles.
然而，尽管它们被誉为艺术文学应该追求的典范，但荷马的杰作也一直是学术届不稳定的根源。
However, even as they were celebrated as the models to which art literature should aspire, Homer's masterworks had also long been the source of scholarly unease.
这些因素包括混乱的大气波动、相对较慢但同样不稳定的海洋活动、地表变化，以及冰雪的覆盖范围。
These factors include the chaotic fluctuations of the atmosphere, the slower but equally erratic behavior of the oceans, changes in the land surfaces, and the extent of ice and snow.
当大脑试图逼迫不稳定的手去完成任务时，两者之间的紧张关系导致的结果是更加精简、心理上更加难懂的表达。
As the brain attempts to force the unsteady hand to do its bidding, the tension between the two results in a more compressed, psychologically denser expression.
不稳定的秋叶叶绿素分子吸收的能量，不会像在完好的夏叶中吸收的能量那样立即传输到有用的产品和工艺流程中去。
The energy absorbed by the chlorophyll molecules of the unstable autumn leaf is not immediately channelled into useful products and processes, as it would be in an intact summer leaf.
这就意味着要利用那些恃强凌弱的牧师们来展示更不稳定的气候是如何影响从农业到交通，再到21世纪战争的方方面面。
That means using the bully clergymen to show how a more volatile climate affects everything from agriculture to transportation to 21st-century warfare.
“下水道淤泥”，是指经城市污水处理厂产生的淤渣，包括预处理的废物、污垢和性质不稳定的淤泥。
"Sewage sludge" means sludge arising from urban effluent treatment plant and includes pretreatment waste, scourings and unstabilised sludge.
人们开始接受物种是不稳定的说法。
There was an emerging acceptance that species were unstable.
交流电总给人一种不稳定的感觉。
交流电总给人一种不稳定的感觉。
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