in particular the demolition of this first post-integrated inter-operator it handover the technical difficulty is unique in the history of itu telecom world, but there is no precedent for reference.
特别是这种先拆后整合的跨运营商it交接所存在的技术难度是世界电信史上绝无仅有的,更没有任何先例可供借鑒。