And we essentially pass light right through the tissue, and from understanding how much of it is transmitted, how much of it is scattered and how much of it is absorbed, we can figure out how much hemoglobin is there in the blood.
我们实际上让这些光 穿过我们的身体组织 然后基于这些光的通过量 散射程度以及被吸收的量 我们就可以得出 血液中的血红素含量