不好意思，我重新按照折射率是1仿真了，但结果和设为etch的确实不同。但用折射率监视器看着折射率分布是一样的，很困惑这是为啥啊
We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.
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