Chí-goā-soàⁿ
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Chí-goā-soàⁿ ê kng-chú ē siong-hāi DNA hun-chú ê kiat-kò͘.
Chí-goā-soàⁿ (ultraviolet) tiāⁿ kán-chheng UV, sī 1 chióng tiān-chû-pho, i ê pho-tn̂g khah té khoàⁿ-ū-kng, khah tn̂g X siā-soàⁿ, iok-liōng 1 nm kaù 380 nm. Chí-goā-soàⁿ ham X siā-soàⁿ ē-tàng chō-chiâⁿ êng-kng ê haū-kó. Chí-goā-soàⁿ ē-tàng sat-khún, m̄-koh mā ē siong-hāi phoê-hu ham ba̍k-chiu.