名词
中文翻译：折返光束
同义词：
['return beam', 'refracted beam例句：1. The reentrant beam is used to transmit information through the air.（折返光束用于通过空气传输信息。）']
例句：
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1. The reentrant beam is used to transmit information through the air.
折返光束用于通过空气传输信息。
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2.The reentrant beam was designed to improve the accuracy of the measurement.
折返光束被设计用来提高测量的准确性。
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3.The reentrant beam was used to create a holographic display.
折返光束被用来创建全息显示。