Unfortunately, the polyurethane foam he used is inherently unstable.
不幸的是，他使用的聚氨酯泡沫本身就不稳定。
Surrounded by open ocean, it is also vulnerable, but Antarctic experts disagree strongly on just how unstable it is.
它被广阔的海洋包围，也很脆弱，但南极专家对它的不稳定程度存在强烈分歧。
This place gets its name from a Creek Indian word, which refers to the unstable floating islands that are common within the swamp.
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。
If their population is tracked through time, it will be seen to be particularly unstable—soaring and plummeting in irregular cycles.
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。
This combination is unstable and quickly rearranges itself into a stabler, but still reversible, substance known as an Amadori product.
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。
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.
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。
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.
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。
To take an extreme example, farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop.
举个极端的例子，以单一作物为主的农田是如此不稳定，一年的坏天气或单一害虫的入侵可以摧毁整个作物。
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.
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。
Problem 7: Cluster becoming unstable after removal of rg.
问题7：删除RG之后集群变得不稳定。
Radioactive materials are composed of atoms that are unstable.
放射性物质由很多不稳定原子构成。
We know what an unstable and changing climate means for health.
我们知道，不稳定的、变化多端的气候对卫生意味着什么。
On the other hand, unstable and uncertain factors are increasing.
另一方面，不稳定不确定因素增多。
An unstable atom gives off its excess energy until it becomes stable.
不稳定的原子释放出多余的能量，直到变得稳定。
Aftershocks following earthquakes can cause further damage to unstable buildings.
地震之后的余震会造成进一步的破坏，一些不稳固的房屋可能因此而坍塌。
The first step in the unstable tree search is to recalculate the checksum over the page.
在不稳定树中搜索时，第一步是重新计算页面上的校验和。
With Japan's reactors still unstable, it may be difficult to be rational about nuclear energy.
日本的反应堆还没有稳定，对核电很难理性地去评判。
The schedule slips, and the resultant product becomes unstable, even after the delayed delivery.
任务还是无法如期完成，即使交付几经延期，做出的产品仍然很不稳定。
There is 10 feet of sea level rise stored up in the unstable part of the West Antarctic ice sheet.
西南极冰架的不稳定部分一旦融化，会让海平面上升10英尺。
And you also know how unstable your emotions can be and that they are not a measure of truth either.
同样你也知道你们的情绪是可以多么的不稳定，它们也不是真理的标准。
An unstable atom gives off its excess energy until it becomes stable. The energy emitted is radiation.
不稳定原子在达到稳定状态前，需要释放出自身多余的能量，这一能量即辐射。
Rock walls resting against glaciers will become unstable as the ice disappears and so set off avalanches.
由于冰川消融，紧靠冰川的石崖变得不稳定，因此引发雪崩。
Immediately after an ACL injury, your knee may swell, feel unstable and become too painful to bear weight.
刚刚发生ACL损伤后，可能出现膝盖肿胀、感觉站立不稳，并且因太过疼痛而无法承担自身体重。
Some users aren't willing to risk an unstable system or voided warranty to get these features on their own.
有些用户不愿为了得到这些功能，而冒着让系统不稳定或者无法保修的风险。
Unlike traditional athletic shoes that are built to be stable, rocker-sole shoes are deliberately unstable.
传统的运动鞋是要让人站立平稳，而这种圆弧底鞋子则是刻意要让人站立不稳。
Military strikes would also risk provoking a wider conflict in a region that is already worryingly unstable.
军事打击同样会在这一已然让人忧心的不稳定地区引发更大规模的冲突。
And she said, "For all these years I didn't want you to know how foolish and unstable I was back when we met."
她说：“这么多年来我都不想让你知道，我们认识的时候我有多愚蠢，多不稳定。”
And she said, "For all these years I didn't want you to know how foolish and unstable I was back when we met."
她说：“这么多年来我都不想让你知道，我们认识的时候我有多愚蠢，多不稳定。”
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