Speed up the travel speed of modern tourism;
现代旅游业加快了旅游速度；
The higher ignition energy was and the higher flame travel speed would be.
点火能量越大，火焰传播速度也越大；
Japan's high-speed trains travel a long way in a short time.
日本高速列车可以在短时间内行驶很远的路程。
The aeroplane will travel at twice the speed of sound.
飞机将以两倍于音速的速度飞行。
Travel time might have been shorter still, but for controversy over the train's speed.
要不是高铁速度引起广泛争论，旅程时间本是可以进一步缩短的。
In that range high-speed could compete quite favorably with air travel.
高铁在此范围内欢迎与空中旅行竞争。
Electromagnetic waves travel with the speed of light, which is 300,000 kilometers per second.
电磁波，以光速传播，也就是30万公里，每秒。
In your imagination you can travel anywhere in the speed of light without any obstacles.
在想象中，你可以以光的速度一路顺风地去世界各地旅行。
Not all colours "travel" at the same speed.
不是全部的颜色都是同样的速度。
The great virtue of air travel is speed.
乘飞机旅行的最大优点是速度快。
Everything becomes a blur when you travel beyond a certain speed.
当你超过一定的速度行进时，一切都变得模模糊糊的。
For a minute or so, our train seems to travel at a uniform speed.
一分钟左右以后，我们的火车似乎在匀速行驶。
So fast does light travel that it is difficult for us to imagine its speed.
光传播得这样快，以致于我们无法想象它的速度。
Signals travel at the speed of light.
信号以光的速度传播。
So fast does light travel that we can hardly imagine its speed.
光速很快，我们几乎没法想像它的速度。 。
Are they sure about the fast speed of space travel?
他们确定太空旅行的高速度吗？ ？
So is high speed train travel even possible in the U. S.?
所以，高速火车在美国甚至是可能的吗？
Trains can't rival planes for speed, but many people prefer to travel by train.
虽然火车的速度比不上飞机，很多人还是愿意坐火车。
So So fast does light travel that we can hardly imagine its speed.
光速很快，我们几乎没法想像它的速度。
So fast does light travel that we can hardly imagine its speed.
光速很快，我们几乎没法像它的速度。
So fast does light travel that it is difficult for us to imagine its speed.
光传播得如此快，我们难以想像其速度。
He showed they would travel with the speed of light and would travel together.
它们以光速传播，而且是一起传播。
Hardly can we imagine the speed of light, as it travel so fast.
光传播得如此之快，以致我们难以想象它的速度。
For a minute or so, our train seems to travel at a uniform speed.
约有一分钟左右，我们所乘的火车似乎是在以均匀的速度向前运行。
This radio speed pressure travel may wilfully adjust.
此机台速度压力行程均可任意调整。
Radio waves also travel at the speed of light.
无线电波也是以光速传播的。
Radio waves also travel at the speed of light.
无线电波也是以光速传播的。
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