estimation of period 周期估计
period estimation 工期估算
pitch period estimation 基音周期估计
sequence period estimation 码周期估计
Precession Period Estimation 进动周期估计
Overlap of Estimation Period and Event Period;
估计窗口和事件窗口重合；
Given that the fund is more likely to inflate its estimation of the illiquid assets, it would seem that investors who withdraw early get the better returns over that time period.
鉴于该基金更希望抬高其预估的非流动性资产，所以就会看到，早些时候撤回的投资人，在那段时间得到了较好的回报。
The detection and parameter estimation of DS signal are studied in this paper. Cyclic period chart spectrum estimation is used on parameter estimation.
本文研究了直扩信号的检测和参数估计两方面内容，参数估计使用了循环周期图谱估计方法。
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