模型涉及了功效函数、耦合度函数、耦合协调度函数和城市化-生态环境耦合评价指标体系以及人工神经bp网络。
These models were designed with efficacy function, coupling degree function, coordination degree function, urbanization-ecological environment index system and artificial neural network BP.
耦合度计算模型由功效函数、耦合度函数和城市化-生态环境耦合评价指标体系构成，其中指标体系的选择是耦合度计算正确与否的关键。
The Coupling Degree Model includes Efficacy Function, Coupling Degree Function and its index system, in which the index system is crucial and determines its available application.
超声耦合剂；透声媒质；卫生要求；生物学评价。
Ultrasonic coupling agent; Acoustic transmission medium; Health requirements; Biological evaluation.
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