When the door frame is seriously distorted, the main beam, the supporting legs, the lower beam, the trolley and the connecting piece of the frame can bear large distortion stress.
在门架严重扭曲时的主梁、支腿、下横梁、台车及他们之间的连接件均会承受很大的扭曲应力。
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；
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