Ianpit
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08:32
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06:05
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Chhòng-chō phè-jih "'''Chek-sò͘''' (日. 窒素; Tek. ''Stickstoff''), 記號 '''N''', sī goân-chú hō-bé 7 ê hòa-ha̍k goân-sò͘, goân-chú-..."
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