查询词典 difficult point

But it is difficult to determine the number of hidden layer neurons, slowly convergent and easy to fall into local minimum point.

该文研究了一种用于说话人识别的小波神经网络模型，给出了网络结构和学习算法。

Man's whole life is pretty difficult:Grow a little bit handsome, rob a hand too much, not handsome, take don't make moves;Alacrity point, say you too oil, make no noise, say you too stuffy;Wear lounge suit and say you too serious, wear a little bit more casually, say your country guy;Will earn money, afraid you pack two milk, don't earn money, again afraid the kid break milk.

男人这辈子挺难的：长帅点吧，太抢手，不帅吧，拿不出手；活泼点吧，说你太油，不出声吧，说你太闷；穿西服吧，说你太严肃，穿随便一点吧，说你乡吧佬；会挣钱吧，怕你包二奶，不挣钱吧，又怕孩子断奶。

At this point in time, with today's level of technology, it would seem that it would be difficult to justify the bulk lyophilization of sterile powders.

在这一点上，以现在的技术水平还很难证明无菌粉末的冻干是合理的。

The compensation for medical malpractice has been a difficult point in theory and practice.

摘 要：医疗纠纷是当今社会的一个热点问题，而医疗事故赔偿问题一直是理论和实务中的一个难点问题。

A relative English natural air mesh point on the Chinese word segmentation is more difficult.

相对英语天然的空格切分，中文分词就困难多了。

Due to the long distance, the target may appear as a dim point and has no feature information like shapes and textures. Furthermore, aero-optic disturbances and air turbulence make the SNR of a single image very low in the real environments. All of above make the miss distance of the missile difficult to estimate in shooting range.

针对目前靶场所面临的测量目标小、距离远、目标与背景对比度小，不具有形状信息的实际问题，提出了一种基于多帧相关技术与波门选通技术相结合的快速目标识别与跟踪方法，特别探讨了多帧相关技术中目标确定的理论判据，并综合考虑目标的尺寸因素和目标的运动特征研究了一种新的波门设定方案。

The algorithms based on two necessary condition is monotone decreasing, for multi-extreme point in solution space, the distribution of final codebook seriously depend on that of initial codebook, it is difficult to cast off if get in local optimality.

然而这些算法本身属单调梯度下降算法，在解空间存在多极值点时，最终码书的分布较大依赖初始码书分布，一旦落入局部最优区域，很难摆脱。

To define each attribute Power is the difficult Point of multiple attribute decision.

多属性决策的难点在于确定各目标的权系数。

Numerous impermeable underground structures exist in urban seepage field. Since the corner of the structure is singular point and the dimension of the structure is negligibly small compared with the whole urban seepage field, it is difficult to model seepage field in urban area with existing methods.

城区渗流场中地下阻水结构物众多，由于结构物角点为奇异点，而且结构物的尺寸跟整个渗流场的尺寸相比起来非常小，这导致现有的计算方法难以对城区渗流场进行模拟分析。

In the most difficult point, I began with the broadband business to NTT confrontation, and everyone was mad that I have.

在最艰难的一点，我却开始了宽带业务来与NTT对抗，每个人当时都说我一定疯了。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。