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单词
safety extra-low voltage, SELV
释义
safety extra-low voltage, SELV
安全[特低]电压; 为防止触电事故而采用的由特定电源供电的电压系列。在任何情况下,在两导 体之间或任一导体与地之间这个电压系列的上限值均不得超过有效值50V (交 流50-500Hz)。
随便看
smoothing angle
SMOOTHING apparatus in paper-making machines
smoothing bar
smoothing blood flow to stop bleeding
smoothing board
smoothing brush
SMOOTHING by abrasive blasting
SMOOTHING by abrasive grinding or polishing
smoothing by free hand
smoothing by means of heat, steam
smoothing by sight
smoothing capacitor
smoothing capacity
smoothing carpet
smoothing chisel
smoothing choke
smoothing choke (coil)
smoothing choke coil
smoothing circuit
smoothing ckoke
smoothing ckokecoil
smoothing ckoke(coil)
smoothing code
smoothing coefficient
smoothing coil
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更新时间:2026/4/18 13:40:37