n.牵引机器相对拖拉机的转角
The goal is to reduce the impact a crash would have on the front car and prevent cars from jackknifing. 测试的目的是减少车厢前部的撞击并防止车厢折裂。
Hence the risk of operation accidents of articulated vehicles such as rolling-over and jackknifing can be reduced. 采用该系统还可以减少铰接车辆行驶中某些事故的发生。
It uses its pectoral-fin spines as anchors to prevent jackknifing as its body musculature produces snakelike movements. 步行以胸鳍棘为锚，在身体产生蛇形动作时防止弯折。
The goal is to reduce the impact a crash would have on the (foot)front car and prevent cars from (jack nothing)jackknifing. 目的是减少碰撞对火车前车厢的影响并避免车厢折裂。
