| 摘要 |
An electron gun for a cathode-ray tube, including at least a first electrode and a second electrode for shaping and focusing the electron beam emitted by a cathode is described. These electrodes are made of a non-oxidizing alloy whose coefficient of expansion between 20° C. and 300° C. lies between 4 10-6/° C. and 13 10-6/° C. .
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