| 摘要 |
<p>The gyrolaser has a light unit (1) including a set of openings (4a). A set of electrodes (5a, 5b) is placed in the openings of the light unit. A set of joints (6) is arranged to ensure tightness of the light unit levelled with the set of openings. A sacrificial electrode is in contact with the joints. The sacrificial electrode includes oxyreduction potential that is than lower oxyreduction potential of the joints. The sacrificial electrode is not placed between the light unit and the joints and is not placed between electrodes and the joints.</p> |
