查询词典 difficulties

What do you have most difficulties on in drawing?

你在画画上最不在行最有困难的是什么？

Clear away obstacles in one's way;Open a way by breaking through bramble and thistle;blaze one's way through all the difficulties

他现在一个铜子也不剩了。善于观察而又非常老练的店老板早就看出了这一点。

This is mainly due to the difficulties in running such packaging efficiently on production lines, he says.

这主要是由于困难，在运行效率，例如包装上的生产线，他说。

The man who discovered the old Inca city of Machupicchu in 1911 had faced extraordinary difficulties to reach it.

那位在1911年发现印加古城马丘比丘的人去那儿时遇到了极大的困难。

It is designed to deal with the difficulties of nonlinear, multivariable, wide lag and incertitude problems in the industry control process according to the intelligent characteristic of humankind.

专家控制是智能控制领域的一个重要分支，其高度的仿人智能特性为按照人类思维方法解决工业过程中的复杂问题提供了一条新思路。

In order to overcome the technological difficulties encountered in the course of insulation fault diagnosis on the base of dissolved gases analysis, several kinds of mathematic models and actualized methods are brought forward to improve the reliability and veracity of fault diagnosis of transformers. The research works are shown mainly as followings:1 A modified fuzzy multi-criteria method is brought forward for insulation fault diagnosis of transformer. Furthermore, a new method for insulation fault diagnosis is proposed on the base of fuzzy multi-criteria together with rule reasoning. With fuzzy diagnosis in the method, fault reasons are filtrated and then the reasons in low probability are prohibited, Moreover, the left reasons are testified by using rule reasoning and then final concludes are drawn in much less misjudge probability and better results.2 On the base of geometry characteristics of C- partition to sample set of DGA data of transformer, a method is put forward to compute effective radius of neighbor field of a sample, number of clusters and values of initial centers. Moreover, the fuzzy C- means cluster model with adaptive weight is brought forward in the first time and then the fault classifier is designed for insulation fault diagnosis of transformer.3 According to the weakness of the degree of gray of gray incidence, a new formula to compute DGI is put forward and then incidence order criterion is ascertained. Moreover, a new DGI model for fault diagnosis is proposed according to the further analysis to relationship between fault reason and content of oil dissolved gases of transformer.

为解决在应用油中溶解气体分析方法（Dissolved Gases Analysis，简称DGA）诊断变压器内部绝缘故障时所遇到的主要技术难题，论文提出了用于提高变压器故障诊断准确性和可靠性的数学模型及实现方法，主要研究工作如下：1）提出了一种改进的变压器绝缘故障诊断模糊综合评判方法；进一步提出了将模糊综合诊断与规则推理相结合进行绝缘故障诊断的方法，该方法采用模糊推理对故障原因进行"过滤"，滤掉可能性极小的原因，然后进一步利用规则推理验证剩下的可能原因，得出最终结论，大大减少了误判比率，获得了较好的效果。2）根据以变压器DGA数据为特征量的样本空间的c-划分几何特性出发，提出了一种求取样本有效邻域半径和聚类数及聚类中心初值的方法，在此基础上，首次提出了一种自适应加权的变压器绝缘故障诊断的模糊c-均值聚类模型，并设计出故障分类器。3）针对常用灰色关联度的不足，提出了一新的灰色关联度计算公式及确定关联序的准则；并在此基础上，通过深入分析变压器发生绝缘故障时的原因与油中溶解特征气体含量的关系，建立了一种新的故障诊断灰色关联模型；通过实例分析证明，该方法能有效地诊断出变压器绝缘故障及故障部位，大大提高了诊断的准确性。

There are many obstacles, counteracting each other, during the construction of long tunnel, such as various working procedures, limited construction period and incommodious operating space due to the narrow transect. Moreover, the inconstant geology decides various operation parameters applying to either drill-and-blast method or TBM method, which, in turn, enhances the difficulties.

长隧洞TBM施工条件复杂，开挖工序繁多；开挖断面小，工作空间有限，施工中各工序之间相互制约、相互干扰；地质条件多变，采用隧道掘进机开挖需要针对隧洞的具体情况采取不同的施工措施，给施工管理带来一定的难度。

But, if one goes on to ask who they are, one finds oneself in no inconsiderable difficulties.

幸运就是我们可以有更大意义上的自主思考，可以在冲突和均衡中选取自己认同的价值观。

It's not that her children's lives are too busy, it's because no one really has the strength and endurance to handle the difficulties involved with taking care of a woman who is incontinent and partially paralyzed.

并不是她的孩子们都很忙，而是因为无人真正有勇气和耐心，照顾一位内急失禁、半身不遂的老太太。

The second part analyses the resistance during the reform program which mainly arising from the following aspectsrthe ideological obstacle on the reformation;the difficulties on the function transition of the local govemment;the inconvertible vested interest of the local government;the legal system of administrative organizations is not in perfect condition;lack of authorized restrictive mechanism;the limit maneuver of people diversion;social welfare system reform and other auxiliary reforms are backward.

第二部分分析了市县乡政府机构改革的阻力。即在市县乡政府机构改革问题上存在着思想障碍；职能转换难；部门利益化的阻碍；行政组织法制不健全，缺乏权威有效的制约机制；人员分流的回旋余地小；社会保障制度改革和其它配套改革滞后等。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。