Please turn off all personal electronic devices or set them to airplane mode on this plane. Thank you for your cooperation.
We manually check electronic equipment one by one to make sure there are no defects.
Why did some airlines start relaxing their rules about the use of electronics during flights?
You have an electronic (電子) container machine. This is just a machine that contains electricity and electric parts. It is, basically, just electronic equipment. Though, you can say electronics if that's easier for you.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.