mainframe

/ˈmeɪnˌfɹeɪm/ 名词 C1

中文：主机

A large, powerful computer able to manage very many simultaneous tasks and communicate with very many connected terminals; used by large, complex organizations (such as banks and supermarkets) where continuously sustained operation is vital.
A computer chassis that hosts and interconnects modules that perform various tasks.
The main frame of a vehicle etc., more commonly main frame.

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