self focusing picture tube
自聚焦显象管
Deflecting focusing coil for camera tube
摄像管偏转聚焦线圈
The Study of the Main Focusing Lens in Colour Picture Tube.
彩色显像管中主聚焦透镜的研究
Study on focusing characteristic of acceleration tube in high current implanter
强流离子注入机加速管的聚焦特性研究
Focusing Performance Analysis of Electron Gun for Large Screen Color Picture Tube
大屏幕彩色显像管电子枪聚焦性能分析
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