樓主: ZacharyPEng
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螺栓受剪力好還是收拉好 |
點(diǎn)評
螺紋也不一定是全螺紋,,只是頭部螺紋鎖緊,,其余部分是光桿。剪應(yīng)力在應(yīng)許剪應(yīng)力范圍內(nèi),,沒問題,。
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