As it turns out, some of India's pavements have a lower classification number.

事实证明，印度的一些人行道的分类编号较低。

Due to this lower classification number, the load of the aircraft has to be distributed across multiple wheels.

由于这个较低的分类号，飞机的负载必须分布在多个轮子上。

The classification number gives details relating to the strength of the pavement and the amount of weight it can handle.

分类号给出了有关路面强度和它可以承受的重量的详细信息。