... 磁石式电话总局 magneto central office 共电制电话总局 commonbattery central office ; battery central office 电话总局,交换总局 main exchange ...
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For the load of equipment, such as the operation of complex features, using the main exchange Frequency vector control technology, using advanced car AC servo control technology.
针对该设备负载大、运行情况复杂等特点,主轴采用了交流变频调速矢量控制技术,小车采用了先进的交流伺服控制技术。
Chapter One, the Main Exchange Channels Between South and North.
第一章,南北朝交流的主要渠道。
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