Fork Backrest 双叉靠背
Backrest impact test 靠背冲击测试
backrest frame test 靠背框架测试
Backrest Size 靠背尺寸
backrest angle [车辆] 靠背角 ; 靠背角度
seat backrest 座位靠背
backrest foundation test 靠背支撑测试
Backrest strength and fatigue 靠背强度和疲劳测试
backrest bushing 靠背轴套
N-COUNT The backrest of a seat or chair is the part that you rest your back on. 靠背
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