But, again, measuring the speed and distance to these objects is difficult.
但是，测量这些物体的速度和距离又是很困难的。
On the assumption that speed is kept constant, distance increases with time.
假如速度不变，则距离随时间增 大。
Turn your iPhone into a cycling partner that tracks your speed, distance and route.
把你的iPhone调到自行车伙伴模式以记录你的速度，距离和路程。
Second, each adjusted his speed, depending on his distance from such obstacles.
第二个规则，每个人调整自己的速度，根据他离障碍的远近。
Speed(S):the distance the crest moves forward per second.
速度（S）：每秒钟波峰移动的距离。
Speed is the ratio of distance to time.
速度等于距离与时间之比。
What is the purpose of speed training for distance runners?
什么是长跑跑步者速度训练的目的？
There is a special formula for calculating distance, if speed and time are known.
如果已知速度和时间，可以利用一个特别的公式计算距离。
Now space satellite is used to speed long distance call.
现在宇宙卫星被用来快速传送长途电话。
Sprinting distance events are exciting because they require both high speed and endurance.
中长跑项目也很受欢迎，因为它不仅要求速度，还需要耐力。
Now space satellites are used to speed long distance calls.
现在人造卫星被用来快速传送长途电话。
One way is to say, if I do a full revolution, I think of the speed as a distance over time.
一种方法是，如果我转完整的一圈，我认为速度就是距离除以时间。
Speed training for distance runners is often ignored.
总之，长跑者经常忽视速度训练。
Information such as speed, distance and time are automatically stored to your training diary.
信息，如速度，距离和时间会自动保存到你的训练日记。
专注于距离，而不是速度。
And then rate of speed equals distance over time.
通过路程和时间计算出我们的速度。
EL display of pressure, speed time and distance for each motion.
EL显示运转中各项动作、压力、速度、时间、距离。
When the speed is doubled, the overall stopping distance is more than doubled, explain why.
当速度是两倍时候，总共的刹车路程要多于原先的两倍，请解释原因。
For a middle distance runner, a combination of strength, endurance and speed is required.
中距离跑运动员需要把力量，耐力，速度很好地结合起来。
A sprinter is one who runs at top speed for a short distance.
短跑选手就是以最快速度跑短距离的人。
The speed of wave is the distance it advances per unit time.
(波速是波在单位时间内前进的距离)。
Do you recommend full speed trails over the actual distance of the race?
你建议用实际全程距离进行全速跑训练吗？
LCD display for time, speed, program, distance, calorie.
LCD背光源显示时间，速度，模式，里程，卡路里。
Applied in the condition of light load, medium or short distance, slow speed etc.
可应用于负载较轻，中短距离，低速运动等场合。
Applied in the condition of light load, medium or short distance, slow speed etc.
可应用于负载较轻，中短距离，低速运动等场合。
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