torsion gum扭振橡胶弹簧torsionn.扭转torsion of ovarian cyst卵巢囊肿扭转torsional deformability扭(转)形变torsion wire viscometer扭丝式粘度计torsion-bending ratio扭弯比torsion pendulum method扭摆试验torsion-box structure扭抗盒式结构,抗扭盒式结构torsion shear apparatus扭剪试验装置torsion testing machine扭转试验机torsional shearing test扭矩剪艽试验Torsion impact response扭转冲击响应