名词
中文翻译：激光
同义词：
['light beam', 'light pulse']
例句：
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1. The laser beam is directed at the target.
激光束被指向目标。
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2. The laser was used to cut through the metal.
激光被用来切割金属。
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3. Lasers are used for many applications, including medicine and manufacturing.
激光被用于许多应用，包括医学和制造业。