... 列车尾部防护 train rear end protection 伸缩运动 fore and aft motion 蛇行运动 hunting； nosing ...
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fore-and-aft motion 沿首尾向运动 ; 纵向操纵装置
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Operating multiple directional value can separately control the fore and aft motion of swing arm oil cylinder, outrigger oil cylinder or hook oil cylinder to finish working of hoisting or unloading.
操作多路换向阀可分别控制摆臂油缸、支腿油缸或锁钩油缸的伸缩运动，完成吊装或卸料工作。
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