神諭R天堂

標題: Www.thetubestore.com [打印本頁]

作者: Mose28J764 時間: 2025-4-8 15:47
標題: Www.thetubestore.com
When the bulb's filament is warmed white-hot, electrons are boiled off its surface and into the vacuum pipe for sale inside the light bulb.

歡迎光臨神諭R天堂 (https://xn--cksr0ar36ezxo.com/)