如今我们有了新的不确定性，关于当下的已知未知数在我的脑海里列了一张快速名单。
Today we have new uncertainties. I made a quick list of current known unknowns in my own mind.
在预测行业里面，“已知的未知数”被称作不确定性。
In the forecasting business, "known unknowns" are called uncertainties.
客观的不确定性关乎唐纳德·拉姆斯菲尔德(在另一种语境中)提及的“已知的未知方面”。
Objective uncertainty is about what Donald Rumsfeld (in a different context) referred to as the "known unknowns".
采用具有已知概率的离散情景描述顾客需求的不确定性，利用基于情景分析的鲁棒线性优化方法建立供应链的运作模型。
Uncertain demands are described as a scenario set with certain probability, the supply chain operation model is constructed by using the robust linear programming method based on scenario analysis.
所提出的近似自适应变结构控制器可以避免控制器中的不连续继电项，同时不必已知系统不确定性范数界。
Then, the normal variable structure controller (VSC) and the adaptive variable structure controller with the estimation for the upper norms of uncertainties are presented.
这种不确定性是由若干已知常数矩阵所张成的凸锥构成的。
The uncertainties form a convex cone spanned by a number of known constant matrixes.
但事实上是已知汇远远大于已知源，且各个源汇的通量在不同研究中结果差异较大，归其原因是卤代甲烷释放与吸收机制的不确定性。
In fact, identified sinks outweigh known sources and fluxes of each source and sink have great discrepancy in different results, this is due to uncertainty of gas production and degradation mechanism.
由已知数据中产生的粗糙决策规则往往具有不确定性，需要适当的不确定性量度。
The evaluation of the uncertainty of rough decision rules retrieved from a given data set needs proper uncertainty measures.
系统的不确定性参数是时变的，但其结构已知。
The uncertainties are time-varying but with confirmed structure.
这里并不要求不确定性和干扰具有常数界，只要其界为状态变量或可测外部变量的已知函数即可。
All uncertainties and disturbances are not required to be constants. They may be bounded by some known functions of states and external measurable variables.
市场目前仍有大量的不确定性，我们虽已知成长将放缓，但尚未得知程度，也不清楚西方国家是否将经历二次衰退。
There is still much uncertainty out there, although we know growth will fall, we don't know how deep it will be and whether the West's economies will experience a double-dip.
客观的不确定性是在DonaldRumsfeld在不同领域提出的关于“已知的不确定因素”。
Objective uncertainty is about what Donald Rumsfeld (in a different context) referred to as the "known unknowns". Subjective uncertainty is about the "unknown unknowns".
当概率已知时，证据理论就变成了概率论，它更符合对专家不确定性信息的融合。
When the probability is known, the theory of evidence becomes a theory of probability, which is more appropriate for the integration of uncertain information.
当概率已知时，证据理论就变成了概率论，它更符合对专家不确定性信息的融合。
When the probability is known, the theory of evidence becomes a theory of probability, which is more appropriate for the integration of uncertain information.
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