linear characteristic system 线性特征系统
quality characteristic system 质量特征体系
characteristic system of equations 特征方程组
characteristic system of administrative protection 行政保护特色制度
accounting information quality characteristic system 会计信息质量特征体系
system frequency characteristic 系统周率特性
system voltage characteristic 系统电压特性
open-loop system frequency characteristic 系统开环频率特性 ; 开环系统频率特性
closed-loop system frequency characteristic 系统闭环频率特性 ; 闭环系统频率特性
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