three-phase to two-phase transformation
...ree-phase three-wire system ==> 三相三线制=>三相3线式 three-phase to two-phase transformation ==> 三相二相変换 three-phase transformer ==> 三相变压器=>三相変圧器 ..
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three-phase to two-phase transformation
三相到两相转换
以上为机器翻译结果，长、整句建议使用 人工翻译 。