When the quasi-periodic quasi-structure of random medium interacts with matching pump light, the interference effect under its whole multiple scattering leads to lasing in random medium.
无序介质激光是由该介质的非周期—类结构与相匹配的泵浦光场相互作用时其整体多重散射的干涉效应产生的。
The reliability analysis of pump station and water gate under earthquake force is rare because of the condition of hydraulic structure and structural complexity.
由于水工结构的条件、工程的复杂性，尤其是对泵房、水闸等水工建筑物在地震载荷的作用下可靠性分析研究甚少。
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