By photon-burst mothod, the fluorescence photons of dye molecules can be distinguished from the backgroundreflecting photons.
通过探测“光子爆发”，把单个染料分子的荧光同很强的背景杂散光区别开来。
2
The tiny gaps between the tubes collect and trap background light to prevent it from reflecting off surfaces and interfering with the light that scientists actually want to measure.
碳纳米管之间的微小空隙收集并抑制了背景光，阻止这些光线反射出表面，干扰了科学家真正想要测量的光线。
3
The reflecting ice crystals on the leaf coolly mimic the shining stars far in the background.