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luminous flux
光通量；光束（流）双语例句Measure the relative spectral power distribution P(λ), chromaticity...
2025-04-18 知识与问答 浏览：525
光通量；光束（流）双语例句Measure the relative spectral power distribution P(λ), chromaticity...
2025-04-18 知识与问答 浏览：525