名词
中文翻译：平均光束长度
同义词：
['average beam length', 'mean optical path length', 'average optical path length']
例句：
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1. The research team has determined the mean beam length of the new laser system.
研究小组已经确定了新型激光系统的平均值光束长度。
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2. The engineer measured the mean beam length of the fiber optic cable.
工程师测量了光纤电缆的平均值光束长度。
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3.The mean beam length is crucial for determining the effective focal length of the lens.
平均值光束长度对于确定透镜的有效焦距至关重要。