Study on the Application of Nanocrystalline Two-phase Exchange-coupling Rare-earth Permanent Magnet in Small and Special Electrical Machine是什么意思_Study on the Application of Nanocrystalline Two-phase Exchange-coupling Rare-earth Permanent Magnet in Small and Special Electrical Machine在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句