英语词汇extension spring是什么意思，extension spring的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	extension spring
释义	extension spring　牵引簧, 拉伸弹簧
随便看	protection system protection system design protection tests protection tube protection valve protection violation protection&indemnity club protectionism protectionism protectionism protectionism protectionist protectionist protectionist protectionist protectionist legislation protectionist policy protectionists protections protections protections protective protective protective protective

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