名词
中文翻译：真实区间
同义词：
['actualinterval', 'actual interval between points']
例句：
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1. The real interval between thetwo cities is about 200kilometers.
两座城市之间的实际间隔大约是200公里。
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2. The real interval betweenthe two points is 5 units.
两点之间的实际间隔是5个单位。
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3. Thereal interval between the two events is1 hour and 45 minutes.
两个事件之间的实际间隔是1小时45分钟。