A light source consisting of a long glass tube containing mercury in a partial vacuum. Available in many lengths and several diameters, the tube is lined with a fluorescent phosphor. When the ...
来自MSN1 个月
State enforces strict ban on common household item due to its harmful effect: 'Now an item ...Oregon House Bill 2531, the final stage of which took effect Jan. 1, has changed household lighting in the state. "Fluorescent lamps are now an item of the past," KPIC reported. The bill bans ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果