NOT KNOWN FACTS ABOUT Sự KIệN

Harmonics are periodic distortions of voltage, existing, or electrical power sine waves. Harmonics in electricity distribution techniques in many cases are because of non-linear masses such as switched method dc power provides and adjustable velocity motor drives.XSMB - SXMB - Kết quả xổ số miền Bắc được tường thuật trực ti