英语词汇“positive block”的读音、翻译、释义、用法及例句-智慧网

词汇	positive block
释义	positive blockpositive block1.■绝对闭锁[闭塞]
随便看	universal asychronous receiver transmitter universal asynchronous receiver universal attachment universal autocollimator universal automation universal back rest universal balancing machine universal ball universal ball float adapter universal ball joint universal bank universal bar universal base hypothesis universal beam universal beam mill universal bench mill universal bender universal bevel universal bevel protractor universal bibliography universal blower universal blowpipe universal board universal boiler graphite universal bolter

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