switchboards
[s'wɪtʃbɔ:dz]
n.
电话总机，电话交换台( switchboard的名词复数 );
例句:
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They built up a local area network using switchboards.
他们用交换机建立了局域网.
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You are quite right, since main switchboards are located there.
你说得对.因为主配电板安装在这里.
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General Electric Company is the leading manufacturer of industrial switchboards.
通用电气公司是主要的工业配电盘生产厂家.