英语词汇“guard arm”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	guard arm
释义	guard arm guard arm [′gärd ‚ärm] (electricity) Crossarm placed across and in line with a cable to prevent damage to the cable. Crossarm located over wires to prevent foreign wires from falling into them.
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