[问题] 什么是Tire Belt?

[MCBR]

今天去换机油,被告知"BELTS BROKEN IN 3 OF 4 TIRES"
不知道轮胎上的皮带是个什么东西,3个断掉了会有什么安全隐患,怎么修理,谢谢.

 

[ccc]

On both sides of each tire.

If tires lack of air, belts can be damaged. Need to change tires.