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。
He suspended the lamp so that the light fell on the table.
他把灯悬挂得使光线正好照在桌上。
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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