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2025-11-01 23:13:30 Using the Euler-Lagrange method, the track of centre of the oil slick and the temporal dispersion scope visualized., 通过欧拉-拉格朗日法，将油膜中心的轨迹和各个时刻的油膜分布情况可视化。

The move was supposed to prevent a \chaotic unwinding\ of Wall Street, Federal Reserve chairman Ben Bernanke told Congress that spring., 美联储主席本•伯南克这一年春天告诉国会，此举旨在防止华尔街出现摇摇欲坠的乱象。