英语词汇Contractions,Premature Atrial简单造句、意思、用法及例句-英语例句辞典

单词	Contractions,Premature Atrial
例句	原声例句科学60秒-科学美国人 2023年5月合集 They were measuring two things: the number of what are called premature atrial contractions and premature ventricular contractions. 房性早搏和室性早搏的数量。科学60秒-科学美国人 2023年5月合集 It's very common for everyone to have an early beat arising from the upper chambers of the heart called premature atrial contractions, or PACs, once in a while. 每个人的上心室偶尔都会出现早搏即房性早搏（PACs），这是非常常见的。
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