Predefined functions are provided by excel to make creating formulas easier Excel所提供的預(yù)定義函數(shù)使創(chuàng)建公式更為容易。
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 許多應(yīng)用程序或平臺(tái)都具有擴(kuò)展性機(jī)制,使得用戶能夠在應(yīng)用程序正在運(yùn)行時(shí)編寫和執(zhí)行自定義代碼(通常是通過使用預(yù)定義函數(shù)) 。
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 本文以單軸速率搖擺臺(tái)為研究對(duì)象,在綜述了國內(nèi)外轉(zhuǎn)臺(tái)研究現(xiàn)狀的基礎(chǔ)上,根據(jù)轉(zhuǎn)臺(tái)預(yù)定的性能指標(biāo)要求和實(shí)際情況,從總體上建立了轉(zhuǎn)臺(tái)的機(jī)械和電控系統(tǒng)。