低阶通道 Lower order path ; LP ; LOPL
高阶通道连接 higher order path connection ; HPC
高阶通道适配 higher order path adaptation
低阶通道保护 Lower order path protection ; LPP
低阶通道适配 Lower order path adaptation ; LPA
低阶通道终端 Lower order path termination ; LPT
高阶通路 Higher order Path HP ; HP Higher order Path
高阶通道保护 higher order path protection
高阶通路连接 higher order path connection
高阶通路/高阶通道 Higher order Path HP
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.
由该模型电路可产生一阶低通、一阶高通及二阶低通、二阶带通滤波器。
Based on this configuration, a first order lowpass or highpass filters and a second order lowpass or highpass filter can be constructed.
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