名词
中文翻译：相对记录
同义词：
['relative indicator', 'relative measurement', 'relative recording device']
例句：
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1. The relative recorder was used to measure the distance between two points.
相对记录仪被用来测量两点之间的距离。
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2.The relative recorder was used to monitor the temperature fluctuations in the room.
相对记录仪被用来监测房间内的温度波动。
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3.The relative recorder was used to track the movements of animals in the wild.
相对记录仪被用来追踪野生动物在野外的活动。