To investigate normal standard of QRS wave complex amplitude of healthy Chinese population in different ages and sexes, x ? s and percentile value of QRS wave complex amplitude of 4322 normal electrocardiographic waves were calculated.是什么意思_To investigate normal standard of QRS wave complex amplitude of healthy Chinese population in different ages and sexes, x ? s and percentile value of QRS wave complex amplitude of 4322 normal electrocardiographic waves were calculated.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句