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The reason for higher internal efficiency but lower brightness is its poor external efficiency.
发光二极管内量子效率高而亮度不高的原因是外量子效率低。
youdao
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The reason for higher internal efficiency but lower brightness is its poor external efficiency.
发光二极管内量子效率高而亮度不高的原因是外量子效率低。
youdao