Unfortunately, rules, regulations, oversight for vessels haven't stayed a pace to the vessel's size.

不幸的是，规章制度和对船只的监管并没有跟上船只的规模。

So contrasting the absorbance of red to infrared light provides a chemical fingerprint to eliminate the blood vessel size effect.

因此，对比红光与红外光的吸光度可提供化学指纹图谱，以消除血管尺寸效应。