The length measurement theory of electromagnetic wave in transmission line was analyzed and a cable length measuring system based on the reflection of electromagnetic wave was designed.
对电磁波在传输线中的测长理论进行了分析，设计了一种电磁波反射测长系统。
This paper presents a study of the reflection of sound pulse from porous material in the ease that the impulse sound source and receiver are located on a line perpendicular to the surface of material.
本文提出当脉冲声源和接收点在同一条垂直于材料表面的直线上时，声脉冲从多孔材料反射的研究。
The reflection of a transmission on a telecommunication line.
远程通信线路上的传输反射。
The reflection of a transmission on a telecommunication line.
配置管理器： 出现一般的远程通信错误。
The optical reflection points or the optical line refraction points, or the laser breakdown points are produced by a laser engraving machine based on selected pictures.
光线反射点、或者光线折 射点、或者激光破坏点由激光雕刻机根据选定的图像产生。
The optical reflection points or the optical line refraction points, or the laser breakdown points are produced by a laser engraving machine based on selected pictures.
光线反射点、或者光线折 射点、或者激光破坏点由激光雕刻机根据选定的图像产生。
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