So, maybe we can actually use the Angle by which the wheel has turned to parameterize the motion.

所以，或者我们可以使用角度，也就是车轮转动的角度作为运动的参变量。

youdao

And, so the wheel has rotated by this Angle here.

车轮转过了这个角度。

youdao

Optimum wheel angle reduces the turning circle and makes maneuvering child′s play.

最佳的车轮转角减小了转弯半径，使转向操纵变得轻松。

youdao

Ford's prototype system aims to lessen distraction by taking readouts from biometric sensors and combining the data with information from the car, including speed, steering-wheel angle, and data from radar sensors or cameras used in blind-spot obstacle detection or cruise control.

WSJ: Designing a Car That Takes Your Pulse, Senses If You're Ill

Its first grainy, wide-angle images showed its own left rear wheel parked on the surface of Gale Crater near the equator of Mars, close to the foot of a three-mile-high mountain it aims to explore in months to come.

WSJ: NASA's Curiosity Rover Lands on Mars

The carver places the knife perfectly against the wheel to create a sharp new angle.

FORBES: When To Pivot: Is it Time to Retool Your Business?