在a与b之间 meaning in English

between a and b

This thesis has studied the dynamic features of a class of the discrete - time neural network model of two neurons , such as the convergence and periodicity and etc . the function of the neuron signal transmission in this model , which belongs to three piecewise constant argument , indicates the following charactersif the signal of one neuron on the network is active between a and b , it will produce invariable encouragement effect on another neuron ; if the signal of one neuron is lower than a , it will produce invariable restrain effect on another one , if the signal of one neuron is higher than b , it will produce no effect on another one
本文研究了一类二元离散人工神经网络模型的解的收敛性及周期解的存在性等动力学特征。该模型的神经元信号传递函数是三段常数不连续函数。这种信号传递函数表明如果某神经元的信号在a与b之间活跃，则它对另一个神经元产生恒定的激励效果，如果某神经元的信号低于a ，则它对另一个神经元产生恒定的抑制效果，如果某神经元的信号高于b ，则它对另一个神经元不产生作用。