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1.The trunking switchboard is a critical component of the electrical system.
特朗克式开关板是电气系统的关键组成部分。
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2.The engineers were tasked with installing the new trunking switchboard.
工程师们被指派安装新的特朗克式开关板。
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3. The trunking switchboard was designed to improve the reliability and efficiency of the electrical system.
特朗克式开关板的设计目的是为了提高电气系统的可靠性和效率。