| ประโยคภาษาจีน : 中文句子 | 
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|  bǎ把  xiào yòng效用  hán shù函数  yǐn rù引入  xìn xī信息  ān quán安全  fēng xiǎn风险  lǐng yù领域  lì yòng利用  qí其  fǎn hán shù反函数  dìng yì定义  jué duì绝对  sǔn shī损失  xiào效  yìng hè应和  xiāng duì相对  sǔn shī损失  xiào yìng效应  yòng yǐ用以  dù liàng度量  ān quán安全  fēng xiǎn风险 | 
| Utility function was introduced into security risk area, and its inverse function is used to define absolute loss effect and relative loss effect as measure of risk. |