As an example he suggests using a book light to read by rather than a lamp on a bedside table that USES a much stronger bulb.
比如说,他建议阅读一本书时需要的光线,不能用床头柜上的灯,而要用一个更亮的灯泡。
The table shows us that the plasma lamp owns the biggest ratio of visible light that reaches 73% and the lowest ratio of ultraviolet and infrared that only be to 27%.
由表可知,等离子灯与其它电光源相比,其可见光比例最高,达到73%,而等离子灯的红外线和紫外线输出比例最低。
The table shows us that the plasma lamp owns the biggest ratio of visible light that reaches 73% and the lowest ratio of ultraviolet and infrared that only be to 27%.
由表可知,等离子灯与其它电光源相比,其可见光比例最高,达到73%,而等离子灯的红外线和紫外线输出比例最低。
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