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。
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。
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。
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。
Classifying manuscripts automatically is a difficult point of the thesis.
稿件上传自动分类是本系统的一个难点。
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。
The limestone mountainous region is the highlight and most difficult point of afforestation.
石灰岩山地是荒山造林的重点和难点。
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。
The investigation of Quyuan "being exiled" is a difficult point at issue in researching into Quyuan s life.
屈原放逐问题的研究，是屈原生平研究的一个热点和难点。
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。
Syntax tagging is the main and most difficult point of corpus tagging, and should be based on syntax theory.
句法标注是语料标注的重点、难点所在，必须以一定的句法理论为基础。
Thevenin′s theorem is a difficult point in the teaching of Circuit Base because it is too hard to be understood.
戴维南定理由于内容抽象、难懂，成为《电路基础》课程中的教学难点。
Owing to a lot of uncertain factors influencing the grain yield, its prediction has always been a difficult point.
粮食产量受到多个不确定因素的影响，它的预测历来是一个难点。
The research of automatic abstract is an important and difficult point in the field of natural language processing.
自动文摘一直是自然语言处理领域研究的重点和难点。
It is the difficult point to seek techniques not only according to judgement standards but also not contrary to rules.
寻求既符合裁判员判罚标准、又不违反规则要求的竞走技术，将成为竞走技术训练的难点。
Therefore, integrative practical activities curriculum is a focal point and difficult point in this curriculum reform.
因此，综合实践活动课程也自然成为本次课改的重点、难点。
Secondly, it expounded the problems of focal point and difficult point in the process of CAI software evaluation study.
阐述了CAI软件评价工作中存在的重点和难点问题；
The prediction of reservoirs is a key point as well a difficult point in exploration for subtle petroleum accumulations.
在隐蔽油气藏勘探中，储层预测既是关键点又是难点。
The computation of utilizable water resources volume is always a difficult point in regional water resources evaluation.
水资源可利用量计算一直是区域水资源评价中的难点。
It is a difficult point to teach the students solving the wave equation on finite interval by the reflection law of the wave.
用波的反射原理求解有限区间上的波动方程是数学物理方程中的基本内容，也是教学中的难点内容。
The teaching and management of the P. E. students is the difficult point in the university students' education and management.
体育生的教育和管理，是综合院校中学生教育管理的一个难点。
Chinese to English translation is a difficult point in learning English as well as an aspect for measuring English competence.
汉译英是学习英语的难点，也是衡量英语能力的一个方面。
The diagnosis of compound fault is always a difficult point, and there is not an effective method in equipment diagnosis field.
在设备故障诊断领域，复合故障的诊断一直是一个难点，缺乏行之有效的诊断方法。
As a basic, important and difficult point, vocabulary mastery is of great significance in the process of learning and using ESP.
专门用途英语(esp)学习及应用中，词汇的掌握是基础，也是要点和难点，起着举足轻重的作用。
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