ac supply (alternating-current supply)
交流电检眼镜
alternating current ophthalmo scope
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相关词条
ac system (alternating-current system)
alternating polarity
menstrual block alternating with flooding and spotting
alternating heat [effusion] (fever) and [aversion to] cold
alternating current electrocardiograph
alternating motion rate
alternating current (abbr. AC)