本文叙述了彩色显像管三枪“目玉”缺陷的主要成因，找出消除办法，取得显著成效。

In this paper, the main causes of the defect black dot on the surface of cathode in CPTs are described in detail , some measures are adopted and the apparent results are achieved.

youdao

本文叙述了彩色显像管三枪“目玉”缺陷的主要成因，找出消除办法，取得显著成效。

In this paper, the main causes of the defect black dot on the surface of cathode in CPTs are described in detail , some measures are adopted and the apparent results are achieved.

youdao