... Binary Synchronous Communications 二进制同步通信（规程） Bell Operating Companies 贝尔运营公司 Bell modem Standards 贝尔调制解调器标准 ...
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Regional Bell Operating Companies 地方贝尔运营公司 ; 区域性贝尔运营公司 ; 营运公司 ; 地方性电话营运公司
·2,447,543篇论文数据，部分数据来源于NoteExpress
Chief among the most often cited suitors are the various regional bell operating companies, or local phone providers.
FORBES: AT&T Vs. MCI
The Regional Bell Operating Companies weren't legally able to sell voice-mail services yet.
FORBES: Digital Dream House
But while MCI was trying to lease lines from Bell operating companies and resell telephone service, AutEx was figuring out how to arbitrage telecommunications another way.
FORBES: The Fall Of The Texting Empire
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