时差N小时 如何防止车辆打滑?(上)

Hydroplaning happens when a vehicle moves too quickly along a wet road.

当车辆在潮湿的路面上开得太快时会出现打滑现象。

A layer of water accumulates under the tires; they lift up and lose traction¹; the driver loses control.

轮胎下聚积的一层水会抬高轮胎，失去牵引力，驾驶员会失去对车辆的控制。

Now, what does NASA have to do with hydroplaning?

美国国家航空航天局与打滑现象有什么关系呢?

Here's an historical look at the science story.

我们来看下科学的历史。

Hydroplaning is a relatively² new phenomenon for humans, given that the combination of high speed and smooth pavement that's necessary has only fairly recently become possible.

打滑现象对人们来说是相对较新的现象，因为高速和光滑的人行道也是最近相对才有的。

In fact, it wasn't until 1957 that a tire treadmill³ study first experimentally demonstrated hydroplaning “in action.”

事实上，直到1957年一台带轮胎的踏车最先通过试验演示了打滑现象的存在。

That study was motivated by airplanes.

那项研究是由飞机引发的灵感。

Hydroplaning had been causing a lot of problems for pilots landing on wet runways.

飞行员降落在潮湿跑道上，打滑现象已经给他们造成了大量的问题。

Here's where NASA comes in. NASA scientists wanted to figure out what hydroplaning was all about.

这也是NASA介入的原因。NASA科学家试图弄明白打滑现象究竟是怎么回事。

1 traction   

n.牵引；附着摩擦力

参考例句：

• I'll show you how the traction is applied.我会让你看如何做这种牵引。
• She's injured her back and is in traction for a month.她背部受伤，正在作一个月的牵引治疗。

2 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。

3 treadmill   

n.踏车；单调的工作

参考例句：

• The treadmill has a heart rate monitor.跑步机上有个脉搏监视器。
• Drugs remove man from the treadmill of routine.药物可以使人摆脱日常单调的工作带来的疲劳。