YouTube20 Sept 2018
10m

打火机为啥一按就打火?超声波怎么发出来?李永乐老师讲压电效应

Podcast cover

彭导分享

Open in Podwise to generate AI notes

Sign in to process this episode and unlock summaries, transcripts, highlights and translations.

Open in Podwise

Shownotes are not generated by Podwise.

打火机为啥一按就打火?超声波怎么发出来?李永乐老师讲压电效应