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汉语拼音：dī sù

指最慢的速度--特别用在汽车三个前进速度的最低速度。

• She selected a low gear and started down the track carefully.

  她选了低速挡小心翼翼地沿小径下行。

• Very slowly he moved forward, the engine ticking over.

  他慢慢往前开，发动机低速运转。

• He downshifted and turned the steering wheel.

  他调到低速挡，转动方向盘。

• You have to shift down when you climb up steep hills.

  开车爬陡峭的山坡时,你得换低速挡.

• Bruce engaged low gear and drove at a terrifying speed, keeping the front wheels astride the crack as he followed its zig - zag course.

  布鲁斯接通了低速挡,开车速度快得令人害怕; 他在使前轮分跨地裂的同时曲曲折折地前进.

• On hills, he must use low gears.

  在山上，他必须挂低速挡。

• In the earth's interior there are similar channels or low - velocity layers.

  在地球的内部有相似的通道或低速层.

• You must use a low gear to drive up the hill.

  开车上山你要用低速档.

• The LV zone is due to interstitial free volatiles and incipient melting.

  低速层是由于空隙自由挥发和初期的熔融作用造成的.

• This air improves the atomization of fuel coming fron the low - speed port .

  这些空气改善了从 低速 出口喷出的燃料的雾化.

• The asthenosphere corresponds approximately to the low - velocity zone.

  软流圈,大体上相当于低速带.

• The linear scaling and the Reynolds number represent classical, aerodynamic similitude requirements applicable to law - speed flight.

  线性缩尺和雷诺数是低速飞行时经典的气动力模似要求.

• The greatest amount of exhaust emissions are produced at idle and during low - speed operation.

  排气中最大量的排放物是在怠速和低速运行时产生的.

• Population: The aggregate population of Beijing grew at low speed.

  人口: 全市人口总量低速增长.

• This river sea ship belongs to speed full form.

  该江海直达船属于低速肥大船型.