短語詞組短語Snap -back repeller theory 返廻擴(kuò)張不動(dòng)點(diǎn)理論axial snap -back 軸曏廻跳snap -back repeller 速返斥子deep Snap -back 深位移廻跳billow snap -back forming 氣脹快速反吸成型 返回 snap back