?变磁通调速
speed control by field weakening 磁场调速 speed control by field variation 变磁通调速 Address-and-Control-Field-Compression ACFC 地址 ..
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。