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在向量值函数中为什么只有导数不为零,才能表示速度?
Hlianbobo
·
Oct 22, 2020
· 2071 views
This topic created in 2029 days ago, the information mentioned may be changed or developed.
http://www.mathchina.com/bbs/forum.php?mod=viewthread&tid=2043701&extra=
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量值
导数
函数
速度
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