As to the problem of sub synchronous resonance (SSR) in thyristor controlled series compensation (TCSC) circuit, a method to real time detect and suppress sub harmonic has been put forward.

针对晶闸管控制的串联补偿电路(TCSC)的次同步谐振(SSR)问题，提出了一种可实时检测次同步谐振，并对其加以抑制的方法。

youdao

Theoretic analysis and simulation indicate that the algorithm has better performance for sub-trend searching in temporal and space, and is useful in time series dynamic feature analysis.

理论分析和仿真结果表明，该算法对基于趋势表示的子序列搜索在时间和空间上都具有更优的性能，适用于时间序列的动态特征分析。

youdao

The time series varying series and the latest time sub-series are defined.

给出了时间序列的变化序列和最近时间子序列的概念。

youdao

By the end of the first lap he was already two seconds up on the leading time and went on to clock a series of sub-30 seconds laps as he moved with grace and power across the ice.

BBC: Sven Kramer takes speed skating gold and Olympic record

At the same time, one of the most important sub-components of the leading economic indicator series is the slope of the yield curve which, by itself, is a very good indicator.

FORBES: Ken Fisher Likes Toys, Semis And More For The Rebound