英语词汇“marginal checking”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	marginal checking
释义	marginal checking marginal checking [′mär·jən·əl ′chek·iŋ] (electronics) A preventive-maintenance procedure in which certain operating conditions, such as supply voltage or frequency, are varied about their normal values in order to detect and locate incipient defective units.
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