The article talks about how to design questions at the beginning and ending of teaching. on the important and difficult points of teaching material, to stimulate the pupils' thoughts.
文章论述了如何在授课起始时设疑提问、在教材重、难点处设疑、在教学的尾声中设疑等问题，从而来激活学生思维。
By analysis of difficult points in underdrainage design at excavation section, the paper briefly introduces thinkings and methods for underdrainage design at excavation section.
通过对挖方段暗排设计难点的分析，简要介绍挖方段暗排设计的思路及方法。
These factors are both important and difficult points in ZTO-NP prescription design and preparation technique.
这三者是ZTO-NP处方设计和制备工艺研究中的重点和难点。
This paper analyzes the difficult points in drilling operation, such as the difficult profile design and well track control and the high demand for wellbore cleaning.
分析了钻井施工难点：鱼骨剖面设计和井眼轨迹控制难度大，井眼净化要求高。
Sometimes the position or design of the seat belt anchor points make it difficult to fit a child seat securely.
有时安全带的锚点的位置或设计使其难以适应儿童座椅安全。
In order to ensure the practicability of the whole design and structure, this paper analyses the focal and difficult points in combined with practice.
结合实际情况分析建设重点和难点，以使整个构思和设计更加切实可行。
The design of locking device is one of the difficult points in the whole design of mechanism with alternating motion.
锁闭装置的设计是整个往复运动机构设计的一个难点。
The design of locking device is one of the difficult points in the whole design of mechanism with alternating motion.
锁闭装置的设计是整个往复运动机构设计的一个难点。
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