Cyclic Train Timetable 周期性列车运行图
cyclic train-life relation 循环应变
cyclic gear train 周转轮系
train cyclic loading 列车循环荷载
Also, as the cyclic loading effects of the train to the subgrade, the improved subgrade needs to possess quality dynamic characteristics.
由于列车对路基的循环荷载作用，因此改良后的路基还要有优良的动力学特性。
To guarantee the safety of train, its very important to study the cyclic fatigue of improving soil.
改良土是高速、重载铁路路基建设中重要的填筑材料。
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