jackknife

音标发音

• 英式音标 [ˈdʒæk.naɪf]
• 美式音标 [ˈdʒæk.naɪf]
• 英式发音
• 美式发音

基本解释

• 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

同根派生

英汉例句

用作不及物动词 (vi.)

• 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。

英英字典

剑桥英英字典

• If a truck that has two parts jackknifes, one part moves around so far towards the other part that it cannot be driven.
• a large knife with a blade that folds into the handle