The two examples are basically very similar in their use of the steady state approximation.
这两个例子在对稳态近似的，使用方面基本上很相似。
The two-photon equation of state including dynamical Stark shift and relaxation parameters is obtained and studied under mean-field approximation.
在平均场近似下求出的状态方程包含了动态斯塔克效应及弛豫时间参数。
It presented two different methods according to traffic state. For current or past state, data approximation can be adopt to get turn-left car trace model because traffic data can be got easily.
根据模拟的交通状态的时间性可分为两种情况，对现有交通状态，由于可采集到交通数据，采用数据拟合的方法获得轨迹模型；
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