速度概念9系是世界上首款将前后刹车完全整合进车架的车型。

Speed Concept 9 Series is the first bike with front and rear brakes actually built into the fuselage.

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速度概念是第一辆将电子系统整合进空气动力性车架的铁人三项战车。

Speed Concept is the first tri bike to integrate electronics into its aerodynamic shape. Out of sight, out of the wind.

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针对规避切削颤振问题，应用相对切削速度概念，提出了速度型动态切削力表达式以及车削或镗削的振动力学模型。

Applying the concept of relative cutting velocity, the expression of velocity type dynamic cutting force and the mechanics model of chatter vibration in turning or boring process were advanced.

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We all have an intuitive notion of velocity right now.

我们现在都有一个对速度的直观概念

耶鲁公开课 - 基础物理课程节选

So, the two most elementary ideas you learn are what is the average velocity of an object, as then ordered by the symbol v-bar.

你们学过的两个最基本的概念是,物体的平均速度,用"v拔"表示

耶鲁公开课 - 基础物理课程节选

But before you even do that, I want to define for you an important concept, which is the velocity at a given time, v .

但在这之前,我要给你们定义一个重要的概念,也就是给定时刻的瞬时速度v

耶鲁公开课 - 基础物理课程节选