然而控制止血法这一平衡过程相当复杂。

Yet regulating haemostasis is a complex balancing act.

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采用小参数摄动法，导出了系统的一阶和二阶控制方程，边界条件，连续条件，平衡条件及相容条件。

Taking a proper asymptotic sequence and perturbation technique, the control equations, the continuity, equilibrium and compatibility conditions of the first order and second order are derived.

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采用物质平衡时间方程分析法求取单井控制储量。

And using material balance with time equation to calculate recoverable reservoir controlled by single well.

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