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1. The ECP is a device that can perform calculations quickly and accurately.
电子计算器是一种可以快速而准确地执行计算的设备。
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2. The ECP is used to calculate the area of a circle.
电子计算器用于计算圆的面积。
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3. The ECP is an essential tool for students who need to do math problems quickly.
对于需要快速解决数学问题的学生来说，电子计算器是必备的工具。