engineering requirement短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 🌏工程需求；量度的技术要求 We present a new improved algorithm of DFT according to the engineering requirement of digital transformer protection and the merits and demerits of the algorithms. 研究了基于微机型继电保护的一些基本算法，并对各种傅里叶算法进行对比分析。 cnki