英语词汇extension tube怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	extension tube
释义	extension tube n. =extension ring
随便看	annularities annularity annular ligament annularly annulate annulated annulated annulates annulation annulations annulet annulets annuli annuli annullable annulled annulled annulling annulling annulment annulments annulose annuls annulus annuluses

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