如患者感觉难以忍受，则降低档位减轻刺激的程度。

Reduce the stalls to relieve the irritation if the patients feel unbearable.

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但是，与在较低档位，较轻地踩踏加速器踏板相比，这一技术更加经济。

However, this technique is more economical than pushing the acceleration pedal less hard while remaining in a lower gear.

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挂档行驶能提供更多驾车控制并减少因降低档位导致车轮锁死的可能性。

Not changing gears gives you more control over your vehicle and reduces the risk of your wheels locking while downshifting.

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取决于许多车辆的整体状况，诸如载油量的差异、高档位和低档位的转速。

These depend on various factors related to the overall set up of the car, the fuel load variation, low gear revs and high gears revs.

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选择合适档位，避免低档跑高速；

Choose proper gears; avoid low gears for high speed;

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选择合适档位，避免低档跑高速；

Choose proper gears; avoid low gears for high speed;

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