GB 50034-2013 第4.1.2条
| **** | Illuminance standard values are graded as 0.5, 1, 2, 3, 5, 10, 15, 20, 30, 50, 75, 100, 150, 200, 300, 500, 750, 1000, 1500, 2000 lx. |
| **** | Illuminance standard values are graded as 0.5, 1, 2, 3, 5, 10, 15, 20, 30, 50, 75, 100, 150, 200, 300, 500, 750, 1000, 1500, 2000 lx. |
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