患者一旦染上一种称之为年龄相关性黄斑变性(湿型amd)的疾病，其血管就会出现异常且会扩散到视网膜的中心，损害患者的中心视觉。
The disease is wet age-related macular degeneration (wet AMD), in which blood vessels grow abnormally and leak into the centre of the retina, damaging sufferers' central vision.
NF3具有相对短的大气寿命（740年），比C2F6和CF4。更容易分解。HF最终扩散到大气中，在大气中它通过湿沉积被除去。
NF3 has a relatively short atmospheric lifetime (740 years) and dissociates more readily than C2F6 and CF4. HF ultimately diffuses down to the troposphere where it is removed by wet deposition.
污染物在大气中被稀释扩散时，还会发生干沉积、湿沉积和化学转化过程，所有这些都会影响污染物在大气中的分布。
Air diffusion can impact the pollutant distribution in atmosphere, and so do some non-diffusion aspects such as dry sediment, wet sediment and chemical translation.
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