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The main problem in laser cooling investigation is to choose materials.
激光制冷问题的核心是材料的选择。
youdao
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The main thing is to use carbon dioxide laser and surgical excision.
主要的是用二氧化碳激光和手术切除。
youdao
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The main thing is to use carbon dioxide laser and surgical excision.
主要的是用二氧化碳激光和手术切除。
youdao