名词
中文翻译：主系统
同义词：
['main system', "primary system例句：1. The main shut-down system is responsible for monitoring the entire plant's operations.（主系统负责监控整个工厂的运营。）2. Main shut-down systems are designed to prevent unauthorized access.（主系统设计用来防止未经授权的访问。）"]
例句：
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1. The main shut-down system is responsible for monitoring the entire plant's operations.
主系统负责监控整个工厂的运营。
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2. Main shut-down systems are designed to prevent unauthorized access.
主系统设计用来防止未经授权的访问。
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3.During maintenance, the main shut-down system must be turned off to avoid damage.
在维护期间，必须关闭主系统以避免损坏。