对称美是数学美的重要组成部分，它普遍存在于初等数学和高等数学的各个分支。

Symmetrical beauty is one of the most important parts of mathematical aesthetics, which widely exists in every branch of elementary mathematics and highermathematics.

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通过力学和高等数学建立了磨具弯曲成形的数学模型，并推导出磨具的宽度函数表达式。

The mathematical model of bending formation lapping tools was established through mechanics and higher mathematics, and the width function expression of the lapping tools was deduced.

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通过对高等数学的教学过程中的观察和思考，分析了高等数学课程存在的问题，提出了五点对教学的思考。

Through the observation and thinking in the teaching process of higher mathematics, this paper analyzes the existing problems in the course and puts forward five pieces of advice for the teaching.

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