名词
中文翻译：动作计器
同义词：
['activity monitor', 'motion detector']
例句：
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1.The actionometer was used to measure the amount of movement in the room.
动作计器被用来测量房间内的运动量。
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2.The activity monitor showed that the children were engaged in various activities.
活动监测器显示孩子们参与了各种活动。
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3. The motion detector detected a sudden change in the room's temperature.
运动探测器检测到了房间温度的突然变化。