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词汇
no-break power unit
释义
no-break power unit
不间断电源设备
一种电源设备,通过电压和频率传感装置控制专用的供电设备,以保持对负载不中断地供电。
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by accident
by acclamation
by air
by-and-by
by birth
by-blow
by bus
by carriage
by chance
by choice
by comparison
by contrast
by courtesy of
by day
by definition
by degrees
by dint of
bye
bye-
bye-bye
bye-byes
byelaw
by-election
Byelorussia
Byelorussian
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