color phototelegraphy

例句：

1. 1. The new color phototelegraphy system has greatly improved the efficiency of our office.
   这个新型的彩色摄影传真系统大大提高了我们办公室的效率。
2. 2.During the war, he used his knowledge of color phototelegraphy to help his comrades in the field.
   在战争中，他利用他对彩色摄影传真的知识帮助他的战友们。
3. 3. The color phototelegraphy was a revolutionary tool that allowed people to send images instantly across great distances.
   彩色摄影传真是一种革命性的工具，它让人们能够瞬间将图像发送到遥远的距离。