低阶通路 lower order path adaptation ; lower order path connection ; Lower order Path LP ; LP Lower order Path
低阶通道 Lower order path ; LP ; LOPL
高阶通道连接 higher order path connection ; HPCHigh order path Connection ; HPC
高阶通道适配 higher order path adaptation
低阶通道保护 Lower order path protection ; LPPLow-order Path Protection ; LPP
低阶通道终端 Lower order path termination ; LPT
低阶通道适配 Lower order path adaptation ; LPALower order qath Adaptation ; LPA
高阶通路 Higher order Path HP ; HP Higher order Path
高阶通路终结 higher order path termination
高阶通道保护 higher order path protection ; HPPHigh -order path Protection ; HPP
本文设计了一个4阶带通数字滤波器。
液面反射波信号主要在硬件方面采用双通道二阶有源低通滤波，功图信号则在软件方面采用数字滤波算法。
Reflected wave signal is processed by double channels two-order low-pass active filtering in hardware, and indicator diagram signal is processed by digital filtering in software.
本文对几类二阶非线性常微分方程，利用首次积分求得了其通积分公式。
This paper has found general integral formulas of some types of two - order nonlinear ordinary differential equations by first integral.
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