分析桥梁受力性能时考虑了结构自重、车辆荷载和季节性温变荷载的作用。
Analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character.
官员最初计划规定，将自重低于40公斤、时速低于20公里的车辆定义为电动车。
Officials initially planned to bring in rules that defined an electric bike as a something weighing less than 40kg and travelling at less than 20kmh.
官员最初计划规定，将自重低于40公斤、时速低于20公里的车辆定义为电动车。
Officials initially planned to bring in rules that defined an electric bike as a something weighing less than 40kg and travelling at less than 20kmh.
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