n.大型折合式刀；镰刀式跳水
vt.使弯曲；用折刀切
vi.屈身；折叠
The results show that the vehicle tends to rollover on the high friction-coefficient road, while the vehicle tends to yaw and jackknife on the low friction-coefficient road. 结果表明，重型半挂车辆在附着系数较高的良好路面上容易发生侧倾失稳，而在附着系数较低的湿滑路面上则更容易发生横摆和折叠失稳。
