It can run at the speed of up to 50 km/h on the tracks.

它在轨道上运行的速度能达到每小时50公里。

Even if ET has mastered building a rocket that can travel at the speed of light, he may be lying dead inside a weakened craft .

即使外星人已经掌握了制造一枚能以光速飞行的火箭的技术，他也可能死在了一架飞船里。

Today people and goods travel by jet aircraft and fast ships, and information is transmitted at the speed of light over the Internet.

人和货物通过喷气式飞机和快船来流动，而信息是通过互联网以光的速度传送。

If you could move at the speed of light, your time would stand still, if you could move faster than light, your time would move backward.

如果你能以光速运动，你的时间就会静止不动；如果你能以快于光速的速度运动，你的时间就会倒退。

Shared memory provides the fastest method of interprocess communication, because it processes read and write messages at the speed of memory transfers.

共享内存提供了最快的进程间通信方法，因为它以内存传输的速度来处理读写消息。

The electron is not moving at the speed of light.

电子不是以光速运动的。

At the speed of Goda's camera, there isn't enough light to magnify.

当达到Goda的这个相机的速度时，已经没有足够的光来放大了。

They participate others' journey at the speed of 15 thousand replies per day.

以每天15000条的回复参与他人的旅行。

Light travels faster than sound at the speed of 300,000 kilometres per second.

光速比声速要快，为每秒钟30万公里。

Radiation: composed of massless or nearly massless particles that move at the speed of light.

辐射：由以光速运行的无质量或近无质量粒子所构成。

Orange, 20, pounds on the drums; Juice, 23, shreds chords at the speed of Shanghai's maglev train.

20岁的Orange嘭嘭的击打着鼓，23岁的Juice则以上海磁悬浮列车的速度扫过琴弦。

Unfortunately, they rarely reshape established processes and hardened attitudes at the speed of change.

不幸地是，他们极少会重塑已经建立好的流程，对待变化速度的态度顽固不化。

But even if they make it to market soon, don't expect to be zipping around the country at the speed of sound.

即使这些飞机很快的投入市场，也不要期待以音速飞行的飞机可以在国家间呼啸而过。

I can just fly down there at the speed of light, catch a quickie, and fly away before she knows what happened.

我只要光速飞过去，速战速决，在她发现之前飞走不就行了。

It is so far from Earth that radio signals, traveling at the speed of light, take 16 hours to reach the spacecraft.

它与地球的距离如此之远，以致地球发出的无线电信号要以光速传播16个小时才能到达这部航天器。

When the telegraph first moved information over long distances at the speed of light, we'd hit a new turning point.

当电报首次以光速长距离传递信息时，我们迎来了转折点。

This blue planet, and near her, the white moon that holds us in her gravitational pull so that we spin at the speed of life.

这蓝色的星球，还有在她附近，那以自身引力挽留住我们的白色月亮，于是，我们以生命的速度旋转。

Since x-rays travel at the speed of light, the echo indicates that an object fell into the black hole around 350 years ago.

因为X射线以光速运行，因此反射表明，大约在350光年前，有一个物质落入黑洞。

They are very nearly massless and thus, even at moderate energies, we'd expect them to travel essentially at the speed of light.

它们的质量非常接近零，因此，即使在中等能量下，我们也希望它们以光速传播。

Kao, 75, pioneered the art of sending information down pure glass fibres at the speed of light and over distances of thousands of miles.

75岁的高昆是信息沿纯玻璃纤维以光速传输达数千公里技术的先驱者。

Notifications at the Speed of Light: Go Beyond Polling with PubSubHubbub* Creating and Consuming Fire Hoses: The Lynchpin of Real-Time Search

光速般的通知响应：以PubSubHubbub超越轮询* 创建和消费水龙带：实时搜索的关键

Those electronic signals move information almost at the speed of light-billions of times faster than the shuffling, shivering humans in the visa queue.

电子信号用接近光速的速度传输信息——要比那些缓慢，冻得发抖的签证队列中的人们前行的速度快千万倍。

These were great thoughts, and he was sending them to people everywhere, available to read at the speed of light, and free as the air they breathed.

书中有伟大的思想，而他只是把这些思想以光速散播给世界各地的人们供其阅读，且如同空气一样免费。

Moreover, because the universe is so vast, it takes years for a signal travelling at the speed of light to reach only as far as the next star to our sun.

另外，由于宇宙是如此广袤，信号以光速从最近的一颗恒星传到太阳也要花去数年时间。

With information traveling at the speed of light, we thought, geographic location wouldn't matter and anyone who Shared our interests would be within reach.

随着信息以光的速度传播，我们认为，地理位置不会是问题，任何与我们兴趣相同的人都近若比邻。

The brain broadcast that signal one-third of a second before a volunteer experienced their conscious moment of insight — an eternity at the speed of thought.

在脑部发射这种信号波三分之一秒后，志愿者就会发生顿悟。