All the wheelchairs have triple crossbars and anti twist bracing to the frames.
所有的轮椅有三重交叉酒吧和抗扭曲的支撑框架。
2
Then they barricaded the window below, and held in readiness the iron cross-bars which served to secure the door of the wine-shop at night.
接着大家堵住下面的窗户，并把那些晚上闩酒店大门的铁门闩放在手边备用。
3
On examining it he found that the door was not a door; it had neither hinges, cross-bars, lock, nor fissure in the middle; the iron bands traversed it from side to side without any break.