它们的工作原理要么是含有能吸收紫外线的化学物质，要么是使紫外线折射或色散，避开你的身体。
They work by either chemically absorbing UV rays or deflecting and bouncing them off your body.
这种测量方法的工作原理是基于衰减全反射中的瞬逝波的传输特性以及物质的反常色散特性。
The theory was based in the transmission characteristics of evanescent wave in attenuated total reflection and the abnormal dispersion characteristics of material.
换句话说，对大多数透明物质而言，偏向愈大，色散愈大。
In other words, for most transparent materials the greater the deviation, the greater the dispersion.
结果表明，低频反常色散介电谱确实可以传达物质结构的信息。
The result indicated that the lower frequency anomalous dispersion can transfer the information of material structure.
结果表明，低频反常色散介电谱确实可以传达物质结构的信息。
The result indicated that the lower frequency anomalous dispersion can transfer the information of material structure.
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