名词
中文翻译：操作变量
同义词：
['control variable', 'manipulated variable']
例句：
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1.The operating variable is the parameter that can be adjusted to change the system's behavior.
操作变量是可调整的参数，可以改变系统的行为。
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2. In this experiment, the operating variable is the temperature, which affects the reaction rate.
在这个实验中，操作变量是温度，它影响反应速率。
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3.The operating variable was carefully monitored to ensure the accuracy of the measurements.
操作变量被仔细监控，以确保测量的准确性。