不活性気体 fukasseikitai
1 inert gas (d.w.z. gas dat geen chemische reacties aangaat)
Warning: Undefined array key "HTTP_ACCEPT_LANGUAGE" in /mnt/web216/d2/76/52236976/htdocs/jnnj-prod/search.php on line 35 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /mnt/web216/d2/76/52236976/htdocs/jnnj-prod/search.php on line 35