The date of his departure is uncertain.

他离开日期尚未确定。

The prognosis for the economy is uncertain.

对经济前景测还不确定。

They are uncertain about what to do next.

他们不知道下一步该做什么。

The police are still uncertain of the murderer's identity.

警察尚未证实杀人犯身份。

Now that oil is scarce, the fate of the motor car is uncertain.

既然石油短缺,那么汽车将来会怎样就难了。

I told him in no uncertain terms what I thought of his behaviour.

直言不讳地说出了对他行为看法。

I was uncertain how to proceed.

没把握下一步该怎么做。

I am uncertain what to do.

确定不了做什么。

The uncertain factors of the process of judicature are the objective and insurmountability shackle.

司法过程不确定性因素是司法过程中客观、难克服桎梏。

I asked her to be my wife, and was rebuffed in no uncertain terms.

要求她做妻子，但遭到断然拒绝。

They maintained an uncertain attitude.

他们持一种暧昧态度。

A continuous reheating industrial furnace is large inertia,pure delay,multi-variables,time-vary-ing,intercoupling complicated controlled plant,and has many uncertain factors.

连续式加热炉是个典型具有大惯性、纯滞后、多变量、时变并且相互耦合复杂被控对象,而且有许多不确定因素。

Many uncertain factors are involved in seismic performance evaluation and the probabilistic results drawn from inadequate information are suspectable.

结构抗震性能评估中包含许多不确定性因素。

The integration uncertain border value is estimated by fuzzy inference and the soft switch control is accomplished by tanh(x) function replacing sgn(x).

根据模糊推理估计集成不确定边界,利用双曲正切函数代替符号函数实现软切换连续控制。

However, in insects with panoistic ovarioles containing no nurse cells, it is uncertain whether or not they contain maternal germ plasm or nuage.

然而，不具有营养细胞无营养细胞型微卵管中，母系生殖浆或生殖云是否仍属未定。