轮数(Number of Wheels)
工业车辆的驱动轮和非驱动轮的总和，不包括支撑轮和辅助轮。工业车辆具有三轮和四轮构造。
英文介绍
Sum of driven and non-driven wheels of an industrial truck not counting support wheels and auxiliary wheels. Industrial trucks are built in three-wheel construction and four-wheel construction.