carriage type doffer是什么意思，carriage type doffer的翻译，carriage type doffer音标、读音、用法和例句

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carriage type doffer是什么意思，carriage type doffer的翻译，carriage type doffer音标、读音、用法和例句_流逝汉英词典

carriage type doffer

基本解释

专业释义

经济学