Heineman said older 3D technology involved the use of two film projectors, one that projected a left eye image and one that projected a right eye image.是什么意思_Heineman said older 3D technology involved the use of two film projectors, one that projected a left eye image and one that projected a right eye image.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句