A small laser sensor for instance is mounted underneath a racing car 's chassis to bounce a beam off the track surface in order to calculate the down-force being exerted on the vehicle .
例如，小型雷射传感器安装在赛车底盘的下方以反射赛道表面的电波，用来计算施加于车辆的往下力量。
What you just said is completely off the track .
你刚才讲的话彻底离题了。
The car spun right off the track .
汽车完全开出了车道。
You can help the kid off the track more than on it .
你不只可以把他弄下来。
He wandered off the track to take a look .
他悄悄走出灌木丛看个究竟。
I almost got kicked off the track team because I flirted too much instead of doing the practices .
我差点被赶出田径队，因为我老在和别人调情而没有练习了。
He doesn 't want to change his lifestyle off the track .
他不打算改变自己赛道外的生活方式。
Carl was way off the track though we advised him again and again .
虽然我们一再劝告卡尔，他还是误入歧途。
Police arrived about 15 minutes later and carried him off the track .
当地警方在大约15分钟后赶到了现场并将男子带离铁轨。
We are losing aerodynamics all the time but you follow another car and you just understeer off the track .
