英语词汇positive negative pressure respiration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	positive negative pressure respiration
释义	positive negative pressure respiration 翻译正负压呼吸以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译网络释义短语 1 positive-negative pressure respiration 正负压呼吸法双语例句 1 The utility model comprises an air drum, a setting scale for air inflow, a positive negative pressure gauge, a respiration valve and a face mask; 本实用新型有一个气鼓，一个进气量设定标尺，一个正负压力表，一个呼吸活瓣，一个面罩；
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