rotational angular frequency
rotational angular frequency
旋转角频率
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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By the method of frequency measurement, instant rotational speed is measured in the test system, angular acceleration is calculated by using the feature of the MCU with the least square method.
介绍了一种发动机无外载功率检测系统的软、硬件设计，利用测频法测量出某一时刻的瞬时速度，并利用最小二乘法求出角加速度。
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