轮轨接触面 meaning in English

running surface of wheeltrack

In the dynamic system of track and interaction between the vehicle and track , it is convenient to consider six sub - systems : the vehicle , wheel / rail contact and representation of excitation , the rail , the fastening system , the sleeper , the sleeper support ( including ballast and substrate )
轨道及车辆与轨道系统可以分为车辆、轮轨接触面及其激振、轨道、扣件系统、枕木及枕木支撑(道渣道床)等六个子系统组成。