speed down

基本解释

Competitors speed down the track and through the air as though they could fly.
参赛者沿着轨道加速，快速地在空中滑翔，就像是他们会飞一样。
In order to process the non-stationary vibration signals such as speed up or speed down signals effectively, the order bispectrum technique was presented.
针对齿轮箱升降速过程中振动信号非平稳的特点，将常规的阶次分析与双谱分析技术相结合，提出了基于阶次双谱的齿轮箱故障诊断方法。
You could be driving at top speed down a highway and not realize the bridge ahead had been destroyed, but that would not change the outcome just because you didn't know the bridge was out.
你可能以最高时速从高速公路事驶出却没有意识到前面的桥已经毁坏了，但是你不能因为你不知道桥不能使用而改变后果。

Before the flight went down, sensors gave conflicting information on air speed to the plane's computers, possibly because of ice.
And the experimenter is back there with the speed knob and at random intervals he just speeds up the tape of their heart and then slows it down.
实验者回到实验室，带着录音设备,随机地,他加速了心跳的录音,然后又慢下来。
耶鲁公开课 - 心理学导论课程节选

When I plugged a Linksys unit into an outlet near three light dimmers and a hair dryer, file transfer speed was cut in half, but dimmers or dryer alone brought the speed down just 25%, to roughly Wi-Fi rates.
FORBES: Home Networks: A Shocking Idea
Once the light enters the ruby, its speed is slowed down to around the speed of sound (approximately 741mph) and the spinning motion of the rod drags the light with it, resulting in the image being rotated by almost five degrees: large enough to see with the naked eye.
FORBES: Slowing the Speed of Light to a Crawl