fifth wheel

英 [fɪfθ wiːl]

美 [fɪfθ wiːl]

网络  第五轮; 多余的人或物; 无用之物; 牵引座; 备用轮

英英释义

noun

• a steering bearing that enables the front axle of a horse-drawn wagon to rotate
• an extra car wheel and tire for a four-wheel vehicle
  Synonym:spare
• someone or something that is unwanted and unneeded
  Synonym:deadwood

双语例句

• Brought a fifth wheel to take notes.
  带上一个电灯泡。
• Fifth wheel welding production line will use flexible design, without changing the hardware wiring and electrical control circuit, you can change the fifth wheel welding process by modifying the corresponding control parameters or change the PLC procedures.
  牵引座焊接生产线将采用柔性化设计，在不改变硬件接线和电气控制电路的情况下，可以通过修改相应的控制参数或者更改PLC程序，即可改变牵引座的焊接工艺。
• All the boys and girls were dancing at the party while I sat at a table alone, feeling like a fifth wheel.
  晚会上，所有的男孩和女孩都在跳舞，只有我孤零零地坐在桌边，感觉自己仿佛是一个多余的人。
• "Since my girlfriend didn't come, I was a fifth wheel at the party."
  “因为我女友没有来，我在舞会上成为多余之人。”
• When a truck-trailer train is turning or under the action of lateral force, A serious cyclic swing often occurs among the towing vehicle, fifth wheel coupling and trailer owing to the interaction between towing vehicle and trailer.
  由于全挂汽车列车的主车与挂车之间的相互作用，在转弯时，或在侧向力的作用下，常常导致主车、转向架和挂车三者之间产生剧烈的周期性摆动现象。
• A Study on Vehicle Movement Measurement Based on RTK Fifth Wheel
  基于RTK五轮仪研制的汽车运动性能试验研究
• According to the measurement principle and practice, the fifth wheel method is perfect to be used to measure speed on the hard and flat road.
  根据测量原理及实践可知：五轮仪用在坚硬平直的公路上测速，效果比较理想。
• The real time kinematic ( RTK) fifth wheel for vehicle road tests is successfully developed using GPS carrier phase RTK technology.
  利用GPS载波相位RTK技术研制成了汽车道路试验RTK五轮仪。
• Author, using the basic theory of random vibration, has obtained a right expression by attentive derivation and the same result with TSO 8608 and GB 7031& 86. This paves the way for establishing an equation to calculating road pavement spectrum measurement by fifth wheel.
  笔者运用随机振动基础理论，经过仔细推导得出正确的表达式，与TSO8608及GB7031&86取得一致的结果。从而为第五轮测量路面谱计算公式的建立铺平了道路。
• Some Problems in Designing of the Fifth-Wheel Meter
  五轮仪设计中的几个问题