对具有多层含水结构的哈密盆地地下水系统，提出了一类考虑弱透水层弹性释水作用的地下水流耦合数学模型。

A coupled mathematical model of groundwater in which the elastic yield of aquitard is considered in Hami basin is presented for its multi layer structural groundwater system.

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其次讨论了一类弱耦合时滞模型的同步分支周期解问题。

Secondly, the synchronous bifurcating periodic solutions for a weakly coupled model with time delay is studied.

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从同轴定向耦合器的基本原理出发，提出了一种比较实用的高方向性弱耦合的同轴定向耦合器的模型。

This paper proposed a practical model for a high-directivity weak-coupling coaxial microwave coupler, based on the principle of coaxial directional coupler and a precise theoretical analyzing process.

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