EMACC

例句：

1. 1.The EMACC is a useful tool for students to learn mathematics.
   电子辅助计算器是学生学习数学的有用工具。
2. 2.The EMACC can perform complex calculations quickly and accurately.
   电子辅助计算器可以快速而准确地执行复杂的计算。
3. 3. The EMACC has become an essential tool in the classroom, helping students understand difficult concepts.
   电子辅助计算器已成为课堂上不可或缺的工具，帮助学生理解难以掌握的概念。