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Solid laser is a four-level system.
固体激光器是一个四能级系统。
youdao
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Ruby laser is a three-level system.
红宝石激光器是一个三能级系统。
youdao
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Does the Soul hunters laser stay at level 3 forever?
灵魂猎手的激光能永远维持在3级吗？
youdao
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Does the Soul hunters laser stay at level 3 forever?
灵魂猎手的激光能永远维持在3级吗？
youdao