In this paper, the influence of the pumping noise and the spontaneously radiative noise on the threshold behaviour for the single mode dye lasers has been analysed by making use of WKB theory.
本文利用WKB理论分析了泵浦噪声与自发辐射对单模染料激光器阈值行为的影响。
By using the WKB method and slowly-varying wave packet theory the main cause for the size change in Tropical Cyclone is analyzed.
应用小参数方法和缓变波包理论分析了热带气旋尺度变化的主要原因。
The course also examines approximation methods: WKB method, variational principle, and perturbation theory.
同时，本课程也解释了几种常用的近似方法：WKB方法、变分原理、以及微扰理论。
The course also examines approximation methods: WKB method, variational principle, and perturbation theory.
同时，本课程也解释了几种常用的近似方法：WKB方法、变分原理、以及微扰理论。
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