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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)。
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infeasible path
infeasible path method
infeasible program
infeasible region
infeasible solution
infeasibly
infeather
in feather
infeatinal obstruetion due to fecal impac
INFEC. DIS
infect
infect.
infectability
infectable
infect agent
infectant
infectation
infect dose
infected
infected abortion
infected abortions
infected alkaline urine
Infected Aneurysm
Infected Aneurysms
infected area
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更新时间:2025/11/8 20:17:03