ower frequency
ower lines【摘要】: Establishes uniform procedures for the measurement of power frequency electric and magnetic fields form ac overhead power lines and for the calibration of the meters used in these measurements.【中国标准分类号】: K04【国际标准分类号】: 17_220_20【页数】: 25P.;A4【正文语种】: 英语 | 欢迎光临 世界资料网论坛 (http://bbs.infoeach.com/) | Powered by Discuz! X2.5 |