Step 7: Look at a light source.
第7步：注视一个光源。
This is a light source people will want.
这会是一种人们想要的光源。
Unit of luminous intensity of a light source.
烛光：光源发光强度的单位。
Kuang Heng studied at night, so he needed a light source.
因为匡衡晚上也学习，所以他还需要一个光源。
The backlight module comprises a light guide plate and a light source device.
该背光模组包括一导光板及一光源装置。
The equipment includes an electric machine, a voltage-stabilizing circuit and a light source.
该装置包括一个电机，一个稳压电路和一个光源。
The equipment includes an electric machine, a voltage-stabilizing circuit and a light source.
该装置包括一个电机，一个稳压电路和一个光源。
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