Road surface, other traffic, wind noise and driving speed all contributed to the cacophony.

路面，其他交通工具，风声和行驶的速度都会不同程度产生刺耳的声音。

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The fourth recruit: don't often rush for driving speed, nasty brake and urgent to wait not to normal operation.

第四招：行车时不要经常进行急加速、急制动和急转向等不正常行驶。

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Through analysis to driving speed in mountainous area expressways, this paper summons the necessity of speed limiting.

通过对山区高速公路行车速度进行分析，提出限速的必要性。

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Waze tracks the driving speed of everyone using it, a feat of passive crowdsourcing that works whenever people have the app running.

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As you drive around, the app will tell you just how much your driving is actually costing you based on that last fill-up and your driving speed.

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When your driving speed is above 25MPH, the service (which can be disabled if you prefer) sends an automatic SMS response to anyone who calls you or sends a text, letting them know you'll get in touch with them as soon as you've finished your journey.

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