Fluorosensor
氟传感器
🗣️ 情景例句
Good. Do you have any back or knee problems?
好。你的背部和膝关节有什么毛病吗
How was your flight?
你的航班怎样？
so it will soon be sending up four astronauts to repair it.
为此将把4名宇航员送入太空修复望远镜。