predefined function meaning in English

预定函数
预定义函数

Predefined functions are provided by excel to make creating formulas easier
Excel所提供的预定义函数使创建公式更为容易。
Many applications or platforms have extensibility mechanisms that give users the ability to write and execute custom code while the application is running , frequently through the use of predefined functions
许多应用程序或平台都具有扩展性机制，使得用户能够在应用程序正在运行时编写和执行自定义代码（通常是通过使用预定义函数）。
This paper focuses on a single - axis speed turntable , generally establishes mechanical and electrical systems in turntable , basing on domestic and abroad research and the acquirement of its predefined function and actual circumstance
本文以单轴速率摇摆台为研究对象,在综述了国内外转台研究现状的基础上,根据转台预定的性能指标要求和实际情况,从总体上建立了转台的机械和电控系统。