新钢轨上道后的前期，蠕变伸长速率较大，以后逐步降低。
The rate of rail creep lengthening at the beginning after rail laying on the track is greater than that of the afterward time.
得出新钢轨上道后的不同时期，其蠕变伸长速率是不同的。
The rate of rail creep lengthening is not the same at the different time after the new rail laying on the track.
然后定量分析了氮素对果实生长速率（以伸长速率表示）的影响。
The results showed that, N affects the appearance rate of fruits and the appearance rate of fruits aborted directly.
应用推荐