lythienlong02 lythienlong02

21-10-2021
Physics

contestada

Độ hấp thụ của dung dịch có độ truyền qua 30% ở bước sóng 640nm là bao nhiêu?

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sunset1sun sunset1sun

21-10-2021

henwbwhehhijwjwkishdbe

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