roadlice微型汽车roadn.路；道路；途径；方法road greening and landscape公路绿化与景观roadbank with reinforcement加筋路堤road preset maintenance fee养路费roadbed side slop compactor边坡压实机road and bridge patch mortar路桥修补砂浆road transportation industry道路货运业road links of transportation输送链道road foundation construction路基施工road application performance路用性能road and railway engineering道路与铁道工程