The date of his departure is uncertain.

他离开的日期尚未确定。

The prognosis for the economy is uncertain.

对经济的前景预测还不确定。

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的身份。

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以预料了。

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

不讳地说出了对他行为的看法。

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.

司法过的不确定性因素的存在是司法过观存在的、难以克服的桎梏。

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

要求她做的妻子，但遭到断然拒绝。

They maintained an uncertain attitude.

他们持一种暧昧的态度。

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、时变并且相互耦合的复杂被控对象,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.

结构的抗震性能评估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，在不具有营养细胞的无营养细胞型微卵管，母系生殖浆或生殖云是否存在仍属未定。