不确定

It is not easy to change this later, so if in doubt specify a greater length.

之后这是不容易改变的，所以如果不确定，指定一个更大的长度。

With the structure of FNN turning more complex, the good approach or classification is hard to get because of redundancies and uncertainties caused by both large volume uncertain data and lack of prior knowledge. Based on high order spectral reduction for rulers, a new structure changed Fuzzy Neural Network is proposed.

针对先验知识不完备和不确定的情况下海量数据造成的冗余和互斥，模糊神经网络结构变得复杂化并不能很快逼近和分类输出对象的情况，提出了一种基于高阶谱完成规则约简的变结构模糊神经网络的模型。

This concept of signaling was first used by Spence (1973) in his studies of the job market.

Kerlof（1970）在他那篇开创性的论文"柠檬市场：质量不确定及市场机制"中，首次提出了信息不对称理论的原理。

Actually, the uncertainty of survey data composes a lot of factors, not only stochastic variable. So traditional parameter estimation theories are not strict. To overcome their shortcoming, Prof.

实际上，测量数据的不确定性是多种不确定因素的综合，而不仅仅是由随机误差组成，因此使用目前的任何一种参数估计方法来处理测量数据都是不严密的。

The inventory cost is a primary component of the supply chain cost, and the method for multi-echelon inventory optimization and control must be adopted for the sake of the entire supply chain optimization and control, t present, papers on multi-echelon inventory systems have solved some problems, but they still have limitations. Firstly, they assumed that leadtime are constants. In practice, as the unknowable incidents exist in production, transportation and distribution processes, leadtime usually are uncertain. Secondly, there exist the hypotheses of totally back orders or completely lost sales under the condition of stockout in most literatures. Thirdly, the existing two-echelon inventory approximate model optimum always fixes one variable in the inventory strategy, and then seeks the optimal in the remained parameters, which makes the result can not be the best outcome.

目前有关两级库存优化控制的研究文献大多是假设提前期为常数的基础上建立模型，然而现实中由于供应链上各节点的库存不确定性以及运输、生产、交货等环节的不可预知性，使得提前期在多数情况下是不确定的；而且大部分文献都是假设缺货情况下要么完全延迟交货，要么完全损失销售，很少有考虑部分损失销售情况下库存优化控制的；另外，现有的两级库存近似模型的优化大都是固定一个库存策略中的变量，对余下变量寻优，其优化结果不可能是最优结果。

Still he says the US will not swear off first use of nuclear weapons, as long as control of those weapons around the world is uncertain.

他还说，只要世界上核武器的控制处于不确定状态，美国就不会承诺放弃首先使用核武器。

I'm not writing it because we can't know if it's a real symptom.

我不写是因为不确定这是真实的症状

I didn't know about the martial aspects of tai chi chuan and wasn't sure I wanted to.

我不了解那些太极拳中的武术动作，我也不确定是否一定要这样做。

The demand of order is changeable and uncertain in teal environment.

在实际环境中，各节点的需求是不断变化的，将这种变化的不确定的需求转化为静态需求为企业运作提供了便利，但却不能在时间上赢得竞争优势。

They might think out loud by bouncing their thoughts off other people, and they might need to chat in order to boost their energy.

但是一定要记得外向者和你交谈并无恶意，内向者对此有几种礼貌的对策：耐心的参与谈话，在谈话结束后独处一阵来为自己"充电"；或者早点打断谈话，告诉别人自己有别的事情要做；甚至直接告诉别人"我很愿意帮助你，但是我不确定我是否是你要找到人。"当然，交谈对内向者来说有时也是很愉快的，他们不会把愉快的谈话当作问题看待。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。