人们希望温度的时间系列尽可能地长，以便能研究各种波的振荡周期。
The time series of temperature are expected to be the longest possible so as to examine various modes of oscillation periods.
结果表明电子的透射系数随外环半长及两个气泡半周长的改变均做周期性振荡。
We found that the transmission of electrons oscillates periodically with the change of ring's half length or two bubbles' half circumferences.
用一个有外强迫的、简单的动力系统研究气候系统中的准两年振荡（平均周期长度比两年稍长或稍短的准周期振荡）。
The QBO (quasi-biennial oscillation) in the climate system, with a mean cycle-length slightly above or below 2 years, is studied in a simple forced dynamical system.
应用推荐