查询词典 difficult problem

He desires to answer speedily but we sometimes believe our problem is too difficult for him to solve.

他希望回答迅速，但我们相信我们的问题有时是太困难，他来解决。

Each of these opinions has its adherents, but the former seems difficult to uphold despite, and in part perhaps because of, the light which recent experiments in suggestion, hypnotism, and spiritism have thrown on the problem.

每个这些意见有其信徒，但前者似乎很难坚持，虽然，并在部分也许是因为，根据最近的实验中建议，催眠术，并spiritism已抛出这个问题。

Summation of infinite series is part of the process of learning more difficult to grasp the progression part, this article summarizes the common summation of several infinite series method, as has the use of progression and the definition of sum, the use of itemized points or one differential sum, the use of split-phase elimination method of summation methods, and problem-solving steps in detail.

无穷级数的求和部分是学生学习级数过程中较难掌握的部分，本文归纳了常见的几种无穷级数的求和方法，像有利用级数和的定义求和、利用逐项积分或逐项微分法求和、利用裂项相消法求和等方法，并提出了详细的解题步骤。

One of the interesting and difficult problems in recent reinforcement learning is to solve large-scale state space problem.

大状态空间值函数的激励学习是当今国际激励学习领域的一个热点和难点问题。

It is a difficult technical problem how to improve and enhance the quality testing technique and method in subgrade construction.

如何改进和提高路基施工过程中的质量检测技术和方法是当前的一个技术难题，亦是路基施工中亟待解决的主要问题之一。

A novel robust design method of cascade control system is proposed for the reheated steam temperature control system of 300MW power-unit in Yuanbaoshan Power Plant. The method successfully solves the problem that the design of main loop and subloop interact each other and the parameter of the controller is difficult to be tuned.

本文所作的主要工作如下：结合带偏置的继电反馈辨识方法和基于期望幅相裕度的整定方法，设计了一个简单有效的、易被工业过程采用的自整定PID控制器。

In view of the key problem of subminiature underwater robots, structural improving,control algorithm and underwater experiment is studied. They can be described as follow: Firstly, the subminiature underwater robot should be compact in size and low cost, for which, it is difficult for us to control its balance. So that, a new kind of piston--style ups and downs system was invented, which can keep the underwater robot horizontally suspended in the water without driving force.

中文摘要本文针对超小型水下机器人在运动中存在的问题，设计了一种新的超小型水下机器人的沉浮结构形式，着重研究了其运动学动力学性能、探讨了相应控制算法、进行了水下试验，具体研究内容如下：首先，超小型水下机器人由于体积小重量轻，在水中沉浮时悬停平衡控制困难，为此进行了一种新的活塞式沉浮系统设计，该系统使水下机器人能够在无动力驱动的情况下，使其呈水平状态稳定悬浮在水中。

Supercalender velocity drop always is a control difficulty of electricity control technology, and it is difficult to solve the problem of velocity drop by common arithmetic.

陕西科技大学电气与信息科学学院，陕西西安，710021

I remember I was young, often sick, my mother often took me up at midnight to see a doctor, there is a problem evening, the weather was cold, I was a fever, and my father on a business trip, my mother carrying me to see a doctor that ah, the wind kick into gear in blowing, the rain, under the gentle, the way her mother walked step by difficult step, has a few four meters away, my stubborn back down from the mother may be his mother always refused, and thus, I Mama's back, hands holding the umbrella, my mother literally let loose upon me to look inside an, to the hospital, my body is dry, it may mother body is wet, the night quietly, and the hospital is quiet, the pommel horse They pulled my hospital, went to the pediatrician, the doctor is still on duty, watching us, and then hastily let us sit down, asked a question, it would be opened to us, but, my mother went to make the drug, to the nurse aunt, after a while, medicine to accompany out, marked with a pin for my mother has accompanied me until I got home after the kick down the needle, she went to bed for a while, looked at the mother look like fatigue, I am a heart, both warm and feel guilty.

记得我小时候，经常生病，妈妈经常半夜起来带我去看医生，有一题天晚上，天气很冷，我又发烧了，爸爸出差了，妈妈这啊背着我去看医生，风呼呼的刮着，雨轻轻的下着，路上，妈妈一步又一步艰难的走着，已经走了几四米了，我倔强的要从妈妈背上下来，可妈妈始终都不肯，就这样，我在妈妈背上，手拿着伞，妈妈硬是让后我把散往里安，到了医院，我身上是干的，可妈妈身上却是湿漉漉的，夜静静的，医院里也是静悄悄的，鞍马们拉着我在医院挂号，走到了小儿科，医生还在值班，看着我们来了，便急忙让我们坐下，问了问情况，便给我们开了要但，妈妈又去令了药，给了护士阿姨，过了一会，药陪出来了，为我打上了针，妈妈又陪着我直到我打完针回到家后，她才去睡了一会，看着妈妈疲劳的样子，我是心，既温暖又感到愧疚。

Because of the imformationization implementation is very difficult, it is became a key problem faced in front of CIM that how to improve information communication and timelessness.

广阔的地域给企业信息的沟通带来了一定的困难，如何加强企业的集团化管理和提高信息沟通的及时性和准确性是摆在集团公司面前的一大问题。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。