A light pointer is often useful with a slide projector.
光指示器经常与幻灯片放映
一起使用。
A light pointer is often useful with a slide projector.
光指示器经常与幻灯片放映一起使用。
His major inventions include phonograph, kinetoscope, dictaphone, incandescent light bulb and tattoo gun etc.
他的主要发明有留声、活动电影放映、
、白炽灯和纹身枪等。
Sport and the movie have been inseparate since the projector had been invented by Thomas Alva Edison.
摘要运动与电影从
迪生发明放映那一刻起即结下不解之
。
The Lumiere brothers of France invented a device called the cinematograph towards the end of the 19th century.
法
的卢米埃兄弟于十九世纪末发明了一种叫做活动电影放映的装置。
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