三视像管电视电影摄像机
three vidicon film camera
阴极射线电视管
cathode-ray television tube
cathode ray television tube
有线电视电缆
cable distribution of CATV
管线预埋
Steel pipe buried in advance
X80电阻焊管线管
X80 grade electric resistance welding linepipe
X射线电视诊断系统
X-ray television diagnostic system
X射线电视装置
X-ray television apparatus