[幾何] 對於a long cylinder or sphere半徑
我一個美國的表姊問我這題
"However, for a long cylinder or sphere, Lc would equal the actual radius r,
rather than r/2 or r/3."
What exactly does my textbook mean by a "long sphere"???
is that even possible?
我回答不太出來,有人可以幫忙解答一下嗎? 有點不瞭解她的意思
如果可以請幫忙用英文回答 表姊中文很弱...
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