本文主要讨论沟道的经典近似，引入了连续模型和静态平均势概念。
In this paper the channeling classical approximation is described. The continuous model and the concept of the static average potential are introduced.
在离散—连续组合模型中包含第一溶剂化层的溶剂分子已经可以较为近似地描述出溶剂化的主要作用。
The combined discrete-continuum model, which including the solvent molecules in the first solvation shell, is enough to simulate main effects.
采用双层规划模型描述弹性需求条件下的连续平衡网络设计问题，设计了近似解的启发式算法。
A bilevel programming model and heuristic solution algorithm is proposed to model the continuous equilibrium network design problem with elastic demand.
该文从时域连续信号角度出发，按照高斯随机过程模型，分析了时钟抖动对基带和中频线性调频信号信噪比的影响并给出了近似公式。
Based on Gaussian random process model and continuous-time system in time domain, this paper analyzes the effect on baseband and intermediate frequency sampling due to clock jitter.
该文从时域连续信号角度出发，按照高斯随机过程模型，分析了时钟抖动对基带和中频线性调频信号信噪比的影响并给出了近似公式。
Based on Gaussian random process model and continuous-time system in time domain, this paper analyzes the effect on baseband and intermediate frequency sampling due to clock jitter.
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