You used this functor twice for binary composition in listing4 .

在清单4中对二元合成使用这个仿函数两次。

This article analyzes the concept and significance of patent document , and also discusses how to search patent on net by classification number , retrieval functor , patent number , and at last discusses the significance of patent legal condition 's retrieval .

本文分析了专利文献的概念和专利文献的重要性，以及通过分类号、检索算符、专利号等方式讨论了如何检索国内专利，最后讨论了专利法律状态检索的重要性。

Aiming at the shortcomings of traditional electric operator , the paper put forward the design scheme of a new kind of electric operator by using computer technology and electronic technology , and introduced lectotype and design of each functor as well as the solution of the key questions in details .

摘要针对传统的电动执行机构的缺点，文章运用计算机技术和电子技术，提出了一种新型电动执行机构的设计方案，并详细介绍了该执行机构各功能元件的选型与设计以及关键问题的解决方法。

Functor returns the marked price as output .

仿函数就返回标签价格作为输出。

Functor for a price comparison .

仿函数进行价格比较。