名词中文翻译
中文翻译：返回光束管
同义词：
['retroreflector tube', 'return beam tube', 'retroreflector tube']
例句：
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1. The engineer useda return beam tube to measure the distance between the two points.
工程师使用返回光束管测量两点之间的距离。
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2. The return beam tube was designed to reflect light back to the camera.
返回光束管被设计用来将光线反射回相机。
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3. The return beam tube is crucial for maintaining focus during long exposures.
返回光束管对于长时间曝光时保持焦点至关重要。