1) periodical ripple moment
周期性波动力矩
1.
A robust learning control algorithm based on disturbance-observer is proposed for reducing periodical ripple moment in turntable servo system by the advantage of repetitive control algorithm that repetitive control algorithm can track or restrain precisely periodical reference signal or disturbance signal in the simple controller form.
针对转台伺服系统中周期性波动力矩扰动抑制问题,利用重复控制算法能以十分简单的控制器形式高精确度地完成跟踪或抑制周期性参考信号或扰动信号的优点,提出了一种基于扰动观测器的鲁棒学习控制算法。
2) periodic interference torque
周期波动力矩
3) Periodic fluctuation
周期性波动
1.
However, as for macro-economy, the development of the real estate industry also shows a phenomenon of periodic fluctuation.
本文对大连市房地产周期性波动的研究，共由以下三部分组成： 第一章通过归纳、总结和评述有关房地产周期概念的主要观点，界定本文所用的房地产周期概念。
2.
The calculation result shows the periodic fluctuation characteristics of the load.
计算结果表明,北方地区浅埋型地下工程热负荷受工程外气象参数变化影响,也呈现出年周期性波动和日周期性波动。
4) periodical fluctuation
周期性波动
1.
Under the condition of economic globalization, many enterprises have to confront periodical fluctuations of an industry.
在经济全球化条件下,很多企业都面临着行业的周期性波动。
5) periodic torque ripple
周期性转矩扰动
6) cyclical load demand fluctuation
负荷周期性波动
补充资料：经济周期性波动风险
经济周期性波动风险——
经济周期性波动风险证券市场行情周期性变动而引起的风险。这种行情变动不是指证券价格的日常波动和中级波动，而是指证券行情长期趋势的改变。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条