Let me give another example to illustrate this difficult point.
让我举另一个例子来阐明这个难点。
The concept and idea of reliability of system has been accepted in the design and analysis of building structures, but its calculation is a difficult point all the while.
在建筑结构的设计与分析中，结构体系可靠度的概念和思想已日益为人们所接受，但它的计算却一直是一个难点问题。
The teacher gave us an explanation of the difficult point.
老师向我们清楚地解释了这个难点。
I hit a difficult point in my work, and decided it was time for a cup of tea.
我在工作中遇到了一个困难，因此打算先喝杯茶休息一下。
R&D of wind turbines has been a hot and difficult point in energy technology field.
高效而可靠的风力发电机的研究与开发已经成为能源技术领域的热点和难点。
Solving this difficult point is to use dialectics.
解决这一教学难点问题的关键是运用辩证法。
Social economic assessment is always of difficult point in EIA.
在项目环境影响评价中，社会经济评价一直是个难点。
Reading is both the key point and difficult point in English study.
英语阅读是英语学习的重点和难点；
The tense teaching is a difficult point in English grammar teaching.
英语语法教学中时态的教学是一个难点。
The automatic mechanism is the key and difficult point of gun development.
自动机是火炮研制的关键和难点之一。
Mode analysis is a difficult point in teaching about basic music theories.
调式分析是音乐基础理论教学中的一个难点。
The price of information products is a difficult point in information theory.
信息商品的定价问题一直困扰着我国信息理论界与实践界。
English listening comprehension is the most difficult point in English teaching.
英语听力理解是当前大学英语教学中的难点。
How to improve listening comprehension is a difficult point in college English teaching.
如何提高听力水平是大学英语教学中的一个难点。
The critical and difficult point of sample handling is sample dehumidifying and dedusting.
在线样气处理技术的重点和难点是样气的除湿和除尘处理。
Teaching Quality of college pedagogy has been a difficult point for years in normal colleges.
公共教育学的教学质量问题多年来一直是高师教学改革中的一个难点。
In TCSL intonation teaching and learning, neutral tone is a focus as well as a difficult point.
对外汉语语音教学中，轻声是语音教学的重点和难点。
The construction of the high pier is the focal point and difficult point of bridge construction.
高桥墩施工是大桥施工的重点和难点，合理选择施工方法是成功的关键。
Identifying gradual change in video sequences is the difficult point in video shot cut detection.
如何识别镜头渐变是视频分割中的难点。
The key point of health undertaking lies in rural area, and the difficult point is also in rural area.
卫生工作的重点在农村，难点也在农村。
The position adjustment is both a key technology and difficult point for control of the ducted fan UAV.
涵道风扇无人机的姿态调整是其控制的一个关键点也是一个难点。
Fitness function's building is the most difficult point in GA-based automatic test creation algorithms.
在基于GA的自动组题算法中，构建适应度函数是最大的一个难点。
Therefore, the teaching of spoken English is the key and difficult point in the tourism English classes.
因此，英语口语教学既是旅游英语课堂教学的重点，又是旅游英语课堂教学的难点。
Infinite integral is a type of improper integral in calculi, and it is also a difficult point in integral.
无穷限积分是微积分学中广义积分的一种类型，是积分知识的一个难点内容。
The non-tone quality phoneme is an important and difficult point in he teaching and coaching of Putonghua.
非音质音位的教学与辅导是普通话教学中的一个重点和难点。
I see. You mean that this imbalance and almost one-way traffic in understanding is the most difficult point.
我明白了，你的意思是说最大的难点在于这种理解上的不平衡以及近乎单行线的状况。
Therefore, the stability of machining thin-walled parts is always a difficult point in high-speed machining.
因此，薄壁零件的切削稳定性一直是高速切削加工领域内的一个难点。
Therefore, the stability of machining thin-walled parts is always a difficult point in high-speed machining.
因此，薄壁零件的切削稳定性一直是高速切削加工领域内的一个难点。
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