variable density track मीनिंग इन हिंदी

उदाहरण वाक्य

1. Although sound films today use variable-area tracks, any modern motion picture theater ( excluding those that have transitioned to digital cinema ) can play a Movietone film without modification to the projector ( though if the projector has been fitted with red LED or laser photocells, the reproduction quality from a variable density track will be significantly impaired ).