共 50 条
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- [4] THE PRODUCTION OF HALOGEN NEGATIVE IONS AT THE SURFACE OF A THORIATED TUNGSTEN FILAMENT PHYSICAL REVIEW, 1952, 85 (01): : 136 - 137
- [5] Exposures from thorium contained in thoriated tungsten welding electrodes AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL, 1999, 60 (03): : 384 - 389
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