英语词汇“concrete collar”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	concrete collar
释义	DictionarySeedoughnut concrete collar concrete collar, doughnut A collar of reinforced concrete which is placed around an existing column so that it can be jacked up; the shrinkage of the concrete causes it to grip the column firmly. MedicalSeeDoughnut
随便看	elevator angle elevator bail elevator boy elevator buffer elevator building notice elevator bumper elevator car elevator car annunciator elevator car door elevator car-frame sling elevator car-leveling device elevator car platform elevator car safety elevator control board elevator controller elevator counterweight elevator disease elevator doesn't go to the top floor elevator doesn't go to the top floor, the elevator dredge elevator furnace elevator girl elevator head elevator hoistway elevator illusion

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concrete collar