Hĭ-gĭng-sṳ̆k (非金屬) sê cī siŏh lôi huá-hŏk nguòng-só.
Găk huá-hŏk diē-sié, ng-sê gĭng-sṳ̆k gì nguòng-só dŭ â̤ dé̤ṳng sáung sê hĭ-gĭng-sṳ̆k.
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