教学难点：归纳数据整理的方法。
胚胎发生是组织胚胎学教学难点之一。
Embryogenesis is one of the difficult points in histology and embryology teaching.
教学难点：理解课文内容。
教学难点：让学生概括和理解减法的意义。
Teaching Important Points: The essence of subtraction and the relationship between the parts of subtraction.
解决这一教学难点问题的关键是运用辩证法。
刚体无滑滚动的问题是刚体力学的一个教学难点。
Non-slippage rolling of a rigid body is a difficulty of teaching of geostatics.
教学难点：根据应用题的数量关系找出等量关系。
Teaching Difficult Points: Find the proper relationship among the Numbers according to the condition provided.
本文主要研究如何运用物理实验突破教学难点的问题。
The research mainly focus on the problem that the physics experiments break through the teaching difficulties.
生物电是生理学的重要内容之一，也是生理学的教学难点。
The part about bioelectricity is one of the most important parts of physiology, and one of the teaching difficulties of physiology.
对教学难点的理解影响着教师教学任务设计的清晰性和有效性。
Lastly, the understanding of the teaching difficulties also affects the clarity and effectiveness of teachers' teaching task design.
介绍了C语言中牛顿迭代算法的教学内容，并分析了其教学难点。
The paper introduces teaching content of Newton iteration algorithm in C language programming, and analysis its teaching difficulties.
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。
Thevenin′s theorem is a difficult point in the teaching of Circuit Base because it is too hard to be understood.
化工控制回路中调节器作用方向判断是《化工自动化及仪表》课程中的教学难点。
Judgement of direction of the regulator function in a control circuit is a teaching jungle of the course Automation and Meters in Chemical industry.
中药化学课程教学难点是要求学生根据中药化学知识，灵活应用于中药提取分离、结构鉴定等。
That requires a leaner to flexible master the identification and extraction method of chemical compositions of CTMC knowledge is the teaching difficult in the course.
高职院校医学类专业均设计卫生统计或相关知识，因受多方面因素的影响，使之成为教学难点。
Higher vocational medical colleges have offered the curriculum of sanitation statistics and related knowledge class, but it meets with teaching difficulties on account of a lot of factors.
受课程内容系统编排的限制，生物电在课程的许多章节都有描述，且各具特点，这也是成为教学难点的原因之一。
Restricted by the schedule of the course contents, bioelectricity is discussed in many parts of the course with respective characters, which is the one of the causes for the teaching difficulties.
通过对王建中先生及其钢琴作品、钢琴改编曲的了解，从教学的角度着重探析作品《云南民歌五首》的演奏技巧与教学难点。
By knowing about Mr Wang Jianzhong and his piano compositions, the author analyses the piano-play techniques and difficulties in teaching.
在操作系统课程的教学中，进程同步是其中一个重点，也是难点。
Process synchronization is an emphasis and difficulty in the teaching of operating system course.
汉字是汉语作为第二语言教学的难点。
Chinese character is one of the difficulties in teaching Chinese as a second language.
同时在计算机专业教学中，算法设计教育是一个难点。
Meanwhile, Algorithm Design Teaching is difficult in computer major teaching field.
汉语双音词是第二语言学习者的难点，也是教师们极为关注的教学重点。
It's difficult for second language learners to master Chinese dissyllabic compounds, which is also a focus teachers are concerned about.
本文探讨了普通话教学的难点，以及推广和普及普通话的有效途径。
The article has talked the difficulty of mandarin teaching and the effective way of spreading mandarin.
物理概念是组成物理知识的基本元素，是物理学的基础，也是高中物理教学的重点、难点。
The physical ideas are the basic element of physical knowledge, the base of physics and is the keystone and difficulty of physical teaching.
分段函数一直是高等数学教学中的重点和难点内容。
The segmented function has always been emphasis and difficulty in higher mathematics teaching.
对控制变量法进行了阐述，并指出了如何运用该方法解决地理教学中的难点问题。
Variable-controlling approach is expounded and how to apply this approach in solving difficulties in geography teaching is indicated.
数学归纳法是中学数学教学内容中的重点与难点之一。
Mathematical deduction is one of key and different points in middle school mathematics teaching.
特殊方阵的生成是程序设计语言教学中的难点。
Generating special square matrixes is a difficulty in programme language teaching.
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。
It is a difficult point to teach the students solving the wave equation on finite interval by the reflection law of the wave.
英语听力理解是当前大学英语教学中的难点。
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。
English listening comprehension is the most difficult point in English teaching.
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