孩子卡在这几页几天了
不对，kceh，你已经说好了要对着数学推导不求甚解的了……再卡下去真凉了
@kceh欧洲数学课真的要人狗命😂
@alteredEnvoy问题是我在学固体物理…哭了…
@kceh固体物理还能讲到电磁？是我的拉跨德语看错了吗...
@alteredEnvoy你没看错，要用电磁波之一的X光测定晶体的…
Fast, secure and up-to-date instance. PrivacyTools provides knowledge and tools to protect your privacy against global mass surveillance. Website: privacytools.io Matrix Chat: chat.privacytools.io Support us on OpenCollective, many contributions are tax deductible!
@alteredEnvoy
你没看错，要用电磁波之一的X光测定晶体的…