The laws of physics are symmetrical for translational displacements. 物理定律對平移是對稱(chēng)的。
Several translational and rotational inelastic response spectra are constructed based from the proposed modal stick. 在本研究中，利用兩個(gè)自由度的振態(tài)桿狀模型建立平移與旋轉的非彈性反應譜。
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