Science
Junior High
⤵︎の写真のaは初期微動でbは主要動だと思うんですけど、aはP波でbはS波でもいいんですか?
a
p
Aomm
wmr
ululu
m
山山
ululu
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30 40
50 60
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80
ゆれ始めからの時間 [s]
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