automatic telephone switchboard造句

例句与造句

1. In 1910, the Automatic Electric Company of Chicago, Illinois, already a major supplier of automatic telephone switchboards, announced it had developed a loudspeaker which it marketed under the name of the " Automatic Enunciator ".
2. In 1910, the Automatic Electric Company, an established firm best known for making automatic telephone switchboards, announced its development of a new loudspeaker, called the " Automatic Enunciator ", which was envisioned to have multiple potential uses.
3. It's difficult to find automatic telephone switchboard in a sentence. 用automatic telephone switchboard造句挺难的