科技英语汇总.docx

Unit 11 The Transfer Function and the Laplace Transformationtransfer function 传递函数Laplace transformation 拉氏变换Laplace domain 复频域linear and stationary 线性定常的initial condition 初始条件lumped parameter集中参数transport lag 传输延迟complex Laplace variable复变量polynomial 多项式order n.阶integrate v. 积分differentiate v.微分frequency domain频率域characteristic function特征函数characteristic equation特征方程transient response暂态响应denominator polynomial分母多项式numerator polynomial分子多项式steady-state value稳态值closed\opened-loop transfer function闭环\开环传递函数block diagram algebra 方块图计算operational mathematics工程数学constant coefficients常系数manipulate 处理implement 实现become adept in 熟练homogeneous solution 通解particular solution 特解unilateral Fourier integral 单边傅立叶积分inverse transform 反（逆）变换improper integral 奇异（无理）积分sign 符号superposition 叠加initial value theorem 初值定理final value theorem 终值定理magnitude 幅值shifting theorem 平移定理multiplication 复合性step 阶跃信号piecewise 分段的yield 推导出，得出integral-differential equation微积分方程Kirchhoffs laws 基尔霍夫定律algebraic equation 代数方程frequency transfer function频率传递函数频率特性Unit 12 Stability and the Time Responsestability 稳定性time response 时间响应continuous\discrete-time system连续\离散系统disturbance干扰stable system 稳定系统at rest 处于平衡状态in equilibrium 处于平衡状态transient phase 瞬态steady-state response稳态响应excitation激励exponential 指数的oscillation 振荡amplitude 振幅impulse response脉冲响应Laplace domain复频域frequency domain频率域time domain 时间域frequency response频率响应transport lag传输延迟conjugate pairs 共轭对differential equations微分方程distinct roots互异根transient mode 瞬态模态the s planes平面Hurwitz criterion 赫尔维茨判据if and only if当且仅当First-order System 一阶系统forced solution 强迫解transient solution瞬态解time constant 时间常数initial value 初值Quadratic lag 二次延迟Second-order system 二阶系统damping ratio阻尼比overdamped 过阻尼critically damped 临界阻尼underdampted 欠阻尼unit step input单位阶跃输入origin原点dominating pole 主极点performance criteria性能指标settling time调节时间factor 因子，分解因式overshoot 超调derivation 导数peak time 峰值时间rise time 上升时间substitute 代替compl