In this image description model, image contents could be analyzed and represented through different levels and the transition from low-level features to high-level semantics is thus achieved.

该图像描述模型通过在不同层次上对图像内容进行分析和描述，实现了从低级特征到高级语义的过渡。

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The paper analyse non-adiabatic modification of energy transition and dynamic evolution for two-level atom in cavity with quantum high order adiabatic approximation (HOAA).

详尽地研究了驻波腔场中两能级原子运动的能量转移和动力学演化的非绝热修正。

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In a high-intensity optics field, using rotating waves approximation (RWA) and the special transform, the problem of two-level atoms transition attributes to the Hill equation.

在强光信号作用下，经过一定的数学代换后，上能级几率的求解可归结为类希尔方程求解；

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To ensure widest participation, the Government of Georgia will fund high-level delegates from over 100 developing countries and countries with economies in transition to participate in the Conference.

UNESCO: Detailview | United Nations Educational, Scientific and Cultural Organization

So, for example, the Secretary General reported that he has sent high-level teams to both Egypt and Tunisia to engage those governments about the process of transition and the political support that the United Nations and the international community might be able to provide in support of those political transitions.

WHITEHOUSE: Press Briefing