Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
Terms
for subject
Lighting
other than cinema
containing
now off
|
all forms
English
Chinese
Now there is a kind of electrodeless mercury lamp which can be instantaneously switch on and off
市面上现有一种无极汞灯,可以瞬时开关
Get short URL