英语词汇paper roll是什么意思，paper roll的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	paper roll
释义	DEFINITIVE EXAMPLES 权威例句〔player piano〕A mechanically operated piano that uses a perforated paper roll to actuate the keys.自动钢琴：使用一卷打孔纸来按键的机械演奏的钢琴美国传统
随便看	pressure mine pressure modulus pressure molding pressure mounting pressure multiplication factor pressure myelitis pressure naphtha pressure necrosis pressure neuritis pressure nozzle pressure of business pressure oil pump pressure oill tank pressure on foundation pressure oscillation pressure oscillation damper pressure pad pressure pair pressure palsy pressure pan pressure paralyses pressure pattern displacement pressure pattern theory pressure pickup pressure pipe

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