求翻译：不少电信企业坚持奉行“以人为本”的管理理念，但事实是，由于体制和管理上的原因，电信企业人才流失现象已相当严重，并且未能得到有效遏制。是什么意思？

Many telecommunications companies adhere to "people-oriented" management philosophy, but the fact is, because of their institutional and management reasons, Telecom Enterprise brain drain in the already serious, and could not be effectively checked.

正在翻译，请等待...

Many telecommunication enterprise persisted carries out “humanist” management idea, but the fact is, because in system and management reason, telecommunication enterprise brain drain phenomenon already quite serious, and has not been able to obtain the effective containment.

Many telecommunications companies adhere to "people-oriented" management philosophy, but the fact is, because of their institutional and management reasons, Telecom Enterprise brain drain in the already serious, and could not be effectively checked.

Many telecommunications companies adhere to "people-oriented" management philosophy, but the fact is, because of their institutional and management reasons, Telecom Enterprise brain drain in the already serious, and could not be effectively checked.