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

• Shift from the first gear to the second gear
  从第一排档转到第二排档
• To place the unit in first gear, the band is applied to hold the sun gear from moving.
  如果，将行星机构置于一档，制动箍带将锁住太阳轮。
• 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；
• Throughout President Obama's time in office, the economy's hardly shifted out of first gear despite all those billions in stimulus spending.
  尽管有几十亿美元的经济刺激计划，但在奥巴马任职总统期间，经济增长速度都非常缓慢。
• I didn't know how to get out of first gear.
  不知道如何从一挡到二挡。
• The operator should have placed the vehicle in lockup and in first gear.
  操作人员应该将车辆锁定在一档。
• We slow down to first gear and ten miles an hour.
  我们减速至第一挡，每小时10英里。
• Go up the hill in first gear.
  挂一挡上山坡。
• 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。
• 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。