This device series is designed for direct operation from a rectified 240 VAC line source and requires minimal external components for a complete cost sensitive converter solution.是什么意思_This device series is designed for direct operation from a rectified 240 VAC line source and requires minimal external components for a complete cost sensitive converter solution.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句