salinity exists in oceanic atmosphere at aerosol form . usually , seacrafts need desalted air , for example , air for combustion and cooling airiness of communication cabin and electron cabin , etc .海洋大气中含有盐分且以气溶胶形式存在,海洋舰船的进气往往有除盐要求,例如舰船发动机燃烧用和冷却用的进气、通讯电子