英语单词“jackladder”的翻译、意思、用法、释义-英汉词典

单词	jackladder
释义	jackladder['dʒæk,lædə]1.■【造船】软梯;绳梯(= Jacob's ladder)2.■【伐木业】(锯木厂运送木材用的)原木链条传送机，索梯(=bull chain)
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