What is Nostr?
dave /
npub1tsg…htk4
2023-02-10 16:45:54
in reply to nevent1q…e52v

dave on Nostr: ...

波谱仪是通过频率谱图,测量频率的范围,并分析电磁波的振幅和频率之间的相互关系,来测量电磁波的波长。
Author Public Key
npub1tsgw6pncspg4d5u778hk63s3pls70evs4czfsmx0fzap9xwt203qtkhtk4