These pieces assaulted the planet at a speed of 37 miles per second.

这些碎片以每秒37英里的速度攻击木星。

At the Equator, Earth spins at a speed of 1670 kilometers per hour.

在赤道，地球以每小时 1670 公里的速度自转。

It's moving away at a speed of 3 or 4 centimetres per year.

它以每年3到4厘米的速度向远离去。

It is traveling at a speed of over 2200 miles or 3600 kilometers per hour.

它运行的速度超过2200英里（3600公里）每小时。

However, it moves very slowly – at a speed of less than one kilometer per hour.

但是它的移动速度非常缓慢，速度不到一公里每小时。

In certain localities its current moves at a speed of four kilometers per hour.

在某些地方，暖流的流速是每小时4公里。

Transferring that same HD movie would take almost two minutes at a speed of 480 megabits per second.

以每秒四百八十兆位元的速度传输同一部电影大约需要两分钟。

The engineers who built the robot said it can walk at a speed of 2.1 meters per second.

制造该机器人的工程师说，它可以以每秒2.1米的速度行走。

Weather authorities said typhoon Talim is moving northwest at a speed of 10 to 15 kilometers per hour.

气象部门表示，台风“泰利”正以每小时 10 至 15 公里的速度向西北方向移动。

Its propeller churned the waves and it headed due north at a speed of fifteen miles per hour.

它的推进器搅动海水，以每小时十五海里的速度直向北方行驶。