困难

This introduction has been written to help alleviate these difficulties by presenting a simplified example of a successful meditator's path of progress as he develops his meditation at Pa Auk Tawya.

这个介绍已经写帮助减轻这些困难的一个成功范例浩浩简化冥想的路径正如他自己发展进步坝羊tawya打坐。

They are now the most austere of the main parties.

他们现在是主要党派中处境最困难的。

Mr McLeod said the difficult economic climate meant 2009 was a challenging time for the Australasian property market.

麦克劳德先生说，经济困难的气候意味着2009年是充满挑战的时候了澳大利亚房地产市场。

The difficulty with movies, however, is that their very massiveness and complexity work against their having such an auteur.

而电影在这方面所遇到的困难是，它那工作的庞大规模与繁杂性是跟这样单独一个作者相对立的。

But it\'s difficult to acquire the crystal structure of hK2, due to its autocatalysis, thus the knowledge of its structure-function relationship is still not clear.

但由于hK2的自水解作用，获得其晶体结构非常困难，这使得对其结构功能间的关系认识较少。

In chapter 2 of this dissertation, we give the mathematical definition of selfsimilarity, and describe some of its properties. How to justify a self-similar process and get its autocorrelation coefficient (or self-similar parameter) are also discussed.

由于对于非马氏过程的排队系统进行数学分析是十分困难的，因此，对自相似业务流特性及网络性能的研究，大多采用某种近似的数学求解，或直接进行计算机仿真，这就需要有快速、准确的自相似序列生成方法。

The manual and automatism measurement of these cracks are especially difficult because most of these cracks are on the bottom of bridges.

由于大多数桥梁的结构裂缝都主要产生在桥梁底部，使人工检测和自动检测都特别困难。

In the light of cost index and pollution degree, the characteristics of kinds of pulp are analyzed in detail, and the GP pulp which is low cost, high-yield, no-pollution is chosen as the material of tableware. Based on material element analyzed, shaping technology is designed, the to and for single plane shaping equipment which is high shaping quality, high production efficiency and is easy to automatize is chosen. All kinds of measure are taken to solve the problems which are inequality in the shaping process of GP pulp, and dosage which matches with GP pulp is chosen. Some ways of fixing shape and heat up are analyzed, the technology of saving energy of heat pressing to fix shape being composed of oil heat and only one fixed shape in the mold is applied, with which it is high production efficiency, low cost to fix shape effectively, which saves energy 30 percent. In order to make the production line meet with material of GP pulp, measure are taken to solve the problem of pulp adhered to netlike molding which can lead to carry material difficult, the structure of fully automatic equipment is renovated, the loaded beam is optimizationally designed to make equipment structure compactand improve location precision and products quality. According to technologic flow and actual characteristic, Omron PLC is chosen as the core of the control system, proximity switch as detect unit take the place of touch switch, software is designed reasonably according to time order figure, hardware is simplified, the reliability of system is advanced, the stability of system is assured to make production order. Intelligence neuron PID system is studied theoretically which is made up of both neuron with self-organizing and self-learning function and ordinary PID with the characteristic of the simple structure and high stability, which can automatically tune the parameter with the change of system parameter, remain perfect performance.

按成本指标和污染程度分析各浆料的特点，选择低成本、高得率、无污染的磨石机械浆为原料，在原料组分分析的基础上，设计成型工艺，选择成型质量好、生产率高、易实现自动化的往复式单板成型机，采取各种措施解决GP浆成型不均匀的问题及选择与机械浆相匹配的助剂；分析几种定型方式和加热方式，采用定型效果好、生产率高、成本低的油加热与模内一次性定型相结合的热压定型节能技术，节能30％；为了使生产线适应磨石机械浆原料，采取相应措施解决由于粘网造成物料转移困难，对全自动设备结构进行改进设计，着重对物料传送系统的关键部件——承载梁的进行优化设计，使设备更加紧凑合理，提高设备的定位精度和产品质量；根据生产线工艺流程和现场特点，选用OMRON CPM1A型PLC为主核心，接近开关作为检测元件，替代有触点开关，选用可编程终端代替常规面板按扭，并按照时序图科学合理地设计软件，有效地简化系统硬件构成，提高系统的可靠性，保证系统的稳定性，从而使生产更加通畅有序；从理论上探索将神经元应具有的自组织、自学习要求与PID控制结构简单、稳定性好的全自动纸浆模塑餐具生产线的研究特点结合起来，构成神经元自适应PID控制器，当参数的变化时，系统能自行参数整定，保持优良的工作性能指标，满足实际需求。

In Chapter 5, we classify several classes of finite groups whose power automorphism groups are of large order.

第五章则以群作用为工具，克服了p-群分类的困难，给出了几类具有较大阶的幂自同构群的有限群的分类。

In general, autonomous segment is one of the most difficult tasks in digital image processing.

通常，自主分割是数字图像处理中最为困难的任务之一。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。