first gear

英 [fɜːst ɡɪə(r)]

美 [fɜːrst ɡɪr]

第一速度（头档）齿轮

英英释义

noun

• the lowest forward gear ratio in the gear box of a motor vehicle
  Synonym:firstlow gearlow

双语例句

• Under the coach's guidance, I started to practice how to start the car, and switch to first gear, and then second and third gear;
  在他得指导下，我开始练习怎样从发动车子到换上更高的档位；
• Shift from the first gear to the second gear
  从第一排档转到第二排档
• The design concept, the structural features and the transmission principle of the first large multifunctional gear cutting machine in China, as well as the application of programmable controller and hydrostatic load relieving technology used on this machine are introduced in this article.
  本文介绍了我国第一台大型多功能齿轮加工机床的设计思想、结构特性、传动原理，并简介了可编程序控制器（PC）和静压卸荷技术在机床上的应用。
• Engage first gear and firmly apply the handbrake.
  挂入一档并牢牢地拉好手制动器。
• This is gear knob: neutral gear, first gear, second gear, third gear, fourth gear, fifth gear, retreat gear.
  这是变速杆手球：空档；一挡；二挡；三挡；四挡；五挡；倒挡；
• Use first gear on steep hills.
  用第一档爬上陡峭的小山。
• More torque can be sent to the wheels in first gear than in fifth gear because first gear has a larger gear-ratio by which to multiply the torque.
  一档变速传给车轮的转矩比五档传出的转矩大，因为一档变速有大的传动比，而大的降速比则加大了驱动力矩。
• The D mode operates and feels like an automatic, except for a subtle but noticeable stutter when moving out of first gear.
  除了一档起步时会有轻微但能够察觉到的抖动之外，D档的操作感觉和自动档汽车差不多。
• To shift from first to high gear, the band is released and the clutch is applied causing the output shaft to turn at the same speed as the input shaft.
  如果从一档换至高速档，制动带松开，离合器接合，则输出轴和输入轴同速同向旋转。
• This article is a summary of the study and manufacturing of the first high parameter gear pump in China.
  聚合物熔体输送增压用高参数齿轮泵的研究制造是齿轮泵技术发展的一个重要方面。