英语词汇“rail anchor”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	rail anchor
释义	rail anchor noun Etymology: rail (II) : a device to help maintain the proper line and gage of track by resisting the longitudinal movement of rails under traffic and maintaining proper expansion allowance at joint gaps for temperature changes
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