当灯泡寿命终结时要予以更换。必须以同样型式和规格的灯泡进行更换。

Change lamp when lifetime expired. Replace expired lamp only with same type and rating.

youdao

当灯泡寿命终结时要予以更换。必须以同样型式和规格的灯泡进行更换。

Change lamp when lifetime expired. Replace expired lamp only with same type and rating.

youdao