Illuminating Engineering Society Methods的意思|示意

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照明工程学会方法

Illuminating Engineering Society Methods的网络常见释义

照明工程协会方法 18. Photometric test should follow IES, Illuminating Engineering Society methods LM79-08 as a completed fixture with LED's installed, and all components in the enclosed housing, what is shown as (LLF) Light Lose Factors?