The first step is to read the contents of a punch card into a core. 第一步是把穿孔卡的内容读入磁心。
This paper describes a series of practical equations for the design of ferrite core inductors, and verifies them by measuring and simulating. 整理出一套工程实用的铁氧体磁心电感设计公式，并通过实际测量和计算机仿真对其作了验证。
