Studies show that a man's brain measures speed and distance to know when to change direction.

研究表明，男性大脑通过估量速度和距离来知道什么时候转变方向。

youdao

Since an individual's social environment affects its success in terms of survival and reproduction, you might expect such changes to influence the speed or direction of evolutionary change.

既然，个体的社会环境会影响到它的生存和繁殖能力，那么进化的速度或方向会受到这些变化的影响也许就在会预料之中了。

youdao

They work with remote control devices that change the direction, position and speed of a German-made cutting machine that slices back and forth along a 300-metre-wide coal face.

他们操作的遥控装置可以改变截煤机的方向、位置和速度，这台德国产的截煤机可以沿着一道300米宽的煤面来回进行切割。

youdao

And, you know acceleration means either change of speed or change of direction.

你知道加速度意味着,不是改变速度就是改变方向。

麻省理工公开课 - 固态化学导论课程节选

The energy released in the updrafts then interacts with our second ingredient needed for violent tornadoes, the change of the wind direction and speed at you go upward from the ground.

CNN: The making of a nightmare tornado

And it is a work in progress, which must constantly debate its direction, its speed and its geometry, and which must soon change its rules to accommodate the applicants at its door.

ECONOMIST: What is Europe?