名词
中文翻译：Unknown
同义词：
['mainframe', 'main machine', 'master machine']
例句：
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1.The main machine is responsible for controlling the entire system.
主机器负责控制整个系统。
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2.The main machine has been upgraded to support a new software version.
主机器已升级以支持新的软件版本。
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3.The main machine is located in the center of the factory.
主机器位于工厂中心。