所述后地板加强梁上的一平面为后弹簧支座面，后弹簧安装在后弹簧支座面的下表面；
One plane of the rear-floor strengthening beam is a rear spring supporting seat surface, the rear spring is installed at the lower surface of the rear spring supporting seat surface;
所述后地板加强梁上的一平面为后弹簧支座面，后弹簧安装在后弹簧支座面的下表面；
One plane of the rear-floor strengthening beam is a rear spring supporting seat surface, the rear spring is installed at the lower surface of the rear spring supporting seat surface;
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