value of价值体现valuen.价值；价格；重要性；(pl)价值观；数值v.估价；重视；评价value of import and export进出口贸易值value orientation of youth青年价值取向Value Engineered Indicator价值工程指示器value of a hiding strategy隐藏策略的值value distribution density值域密度value of natural resources自然资源价值value analysis engineering价值分析工程value-chain optimization价值链优化value additivity principle增值原则value their old traditions尊重他们的古老风俗