The next question is why the glass casing surrounding an electric light might be compared to an onion.
下一个问题就是，为什么人们会将电光外的玻璃罩类比成洋葱？
2
Set in a casing pipe cutting, equipment, light and practical.
集套管切管于一身，装备轻便实用。
3
The utility model discloses an apparatus for fixing and displaying, which combines the light and the sugar displaying, and comprises a front casing, a back casing and a hoop.