马镫的一阶效应已是非常巨大。
笔者指出，当入射引力波和高斯束不同频率时，高斯束谐振系统产生的一阶扰动光子流没有观测效应。
This paper points out that the first-order perturbation photon flux produced by this system has not observed effect when GWs is different from frequency of Gaussian beam.
时间序列分析显示两类变量都存在一阶负相关，而交易活动存在周日效应。
The time series analysis show that the two class of variables have one order negative correlation, and the trading activity has weekly seasonal effect.
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