简谐波 meaning in Chinese

simple harmonic wave

When the axial speed varies harmonically about a constant mean one , the method of multiple scales is applied to the axially moving beam to determine the instability boundary due to parametric resonance
当轴向运动速度在其常平均值附近作简谐波动时，应用多尺度法给出轴向变速运动梁参数共振时的不稳定条件。
The results show that the temperature variety in prestress concrete could not been neglected . the main factors that affect the temperature distribution had been analyzed basing on experiment results and much datas of environment variety , and provided a simple curve about periodical variety environment temperature
在现场试验研究和其它的环境温度的大量实测资料的基础上，对影响预应力混凝土构件内部温度分布的主要因素进行分析，提出了周期性变化的环境温度可在数学上简化为一条简单的简谐波曲线。