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| 不活性ガス (fukassei-gasu); 希ガス (ki-gasu); 稀ガス; 貴ガス oK (き・がす) | |||
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| 貴ガス (き・がす) | |||
| 不活性気体 (ふかっせい・きたい) | |||
| English thesaurus | |||
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| IG | |||
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