一: one阶: steps; stairs无: not have; there is not; be w ...差: send on an errand; dispatch系统: system二阶无差系统: second order astatic system测距差系统: distance difference measurement system等压差系统: isobaric-differential system和差系统: sum and difference system; sum-and-difference system外差系统: heterodyne system无静差系统: astatic system无像差系统: aberration-free system; unaberrated system误差系统: error systems压差系统: pressure differential system一阶系统: first-order systems复消色差系统: apochromatic system; complex achromatic system海洋温差系统: ocean thermal gradient power generation检测误差系统: error system单静态外差系统: monostatic heterodyne system一阶: first order; first-order; single(-)order一阶离散时间系统: first-order discrete-time systems一阶连续时间系统: first-order continuous-time systems同阶无穷大: infinite of the same order一阶系统的过渡函数: admittances of a first-order system音阶无半音的: anhemitonic
