这就为形势增加了一种不确定因素。
他们尽力保护自己免受困难和不确定因素的影响。
They tried to buffer themselves against problems and uncertainties.
在她儿子入学那天，她深思了有关他未来的种种不确定因素。
On the day her son began school, she meditated on the uncertainties of his future.
研究基因如何控制动物行为的研究人员不得不面对许多不确定因素。
Researchers studying how genes control animal behavior have had to deal with many uncertainties.
这并不是唯一的不确定因素。
另一方面，不稳定不确定因素增多。
On the other hand, unstable and uncertain factors are increasing.
市场可能是另一个不确定因素。
学历文凭存在很大的不确定因素。
此外，还有另外一个不确定因素。
法规变化是另外一个不确定因素。
还一个不确定因素是关于调整环境的。
There is also uncertainty concerning the regulatory environment.
但目前仍有许多不确定因素，这样的复苏是脆弱的。
Yet there remain many uncertainties, and the recovery is fragile.
全球变暖又增加了一层不确定因素和风险。
但是最大的不确定因素还是对环境的影响。
在过去的几年里，中国两个不确定因素已经清除干净。
In the past few years, two uncertainties about China have cleared themselves up.
因此，它同竞争对手一样也面临着同样的不确定因素。
这里有两个不确定因素-，也就是时间和距离的不确定性。
So there are two uncertainties involved — the distance and the timing uncertainty.
所有的这些不确定因素对碳市场都不是什么好事。
All this uncertainty will not be good for the carbon markets.
然而，刺激计划总有一天会结束，不确定因素仍将继续存在。
Yet, uncertainties remain as the stimulus packages will one day be exhausted.
在这一新的不确定因素影响下，黄金应该从中受益。
With this renewed uncertainty the yellow stuff should be benefit.
第三个方案，不确定因素最多，但可能是最有价值的。
The third sort of offset is the least certain, but potentially the most valuable.
观测的不确定因素并源于天文学家精确的不够，而是距离的问题。
The uncertainties in the measurements don't come from astronomers lack of accuracy, far from it.
可见，只有当，我们对不确定因素有充分了解时，测量才有意义。
And you see, it's only meaningful because we have a good idea about the uncertainties in the measurement.
因为其地幔的未知混合物，火星形成历史上还有诸多不确定因素。
There have been large uncertainties in the formation history of Mars because of the unknown composition of its mantle, the rock layer that underlies the crust.
当前，中东局势既存在改善的机遇，也面临种种不确定因素和风险。
The current situation in the Middle East is featured by both opportunities for improvement and uncertainties and risks.
分析师抱怨说这项计划有太多不确定因素，因此很难预测出任何结果。
Analysts complain that the scheme has so many uncertainties that it is difficult to predict any outcome.
现在我们能将这些不确定因素范围缩小到能开展有趣科学实验的程度。
Now we can shrink those uncertainties to the point where we can do interesting science.
国会正考虑一项行动，但无法及时减少这个季节的不确定因素。
Congress is considering such a move, but not in time to reduce this season's uncertainty.
国会正考虑一项行动，但无法及时减少这个季节的不确定因素。
Congress is considering such a move, but not in time to reduce this season's uncertainty.
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