材力問題 - 土木

By Edith
at 2014-01-13T14:38
at 2014-01-13T14:38
Table of Contents
1.http://ppt.cc/ty73
想問一下?部分是怎麼看出來要加負號?
2.http://ppt.cc/knuy
為什麼這題的臨界載重要帶Iy不帶Ix?另外()內的control指的又是啥?
謝謝
--
想問一下?部分是怎麼看出來要加負號?
2.http://ppt.cc/knuy
為什麼這題的臨界載重要帶Iy不帶Ix?另外()內的control指的又是啥?
謝謝
--
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土木
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