[电子]标准阻抗
normal───n.(Normal)人名；(德)诺马尔；adj.正常的；正规的；标准的；n.正常；标准；常态；法线（数学）
normal time───[管理]正常时间；[计量]标准时间；纯劳动时间；纯劳动时间，正常时间
squite normal───斜视正常
black normal───黑色正常
normal balance───[经] 正常余额
normal play───正常播放
normal crush───正常压碎
normal end───标准端
normal combo───普通组合
A special nomograph designed for calculating the normal specific acoustic impedance is proposed.───提出一种为计算法向声阻抗率而设计的专用列线图。
Compare to the normal rectangular waveguide, ridge waveguide has the character of broader bandwidth, smaller dimension, lower equivalent characteristic impedance, etc.───与普通矩形波导相比，脊波导具有工作频带宽、尺寸小、等效特性阻抗低等特点。
Based on the method of linear polarization, AC impedance and time potential, it is studied that the properties of seawater corrosion resistance of rebar in normal concrete and fly ash concrete.───应用线性极化法、交流阻抗法和时间电位法等电化学方法对普通混凝土和掺粉煤灰混凝土中钢筋耐海水侵蚀性能进行了研究。