被鎖“材料力學(xué) I 22 最大平面切應(yīng)力”鏈接
知乎
https://www.zhihu.com/zvideo/1618980306018652160
西瓜視頻
https://www.ixigua.com/7209562007832363559?logTag=5af4d53ef4de59d5b90f
抖音
https://www.douyin.com/user/self?modal_id=7209561902198885692&showTab=post
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