We shall now consider pertinent information on recent developments in cardiac electrophysiology.

　　我們?cè)谙旅鎸⒂懻撔募‰娚�理學(xué)最近發(fā)展的有關(guān)資料。

　　A ring of muscle, the cardiac sphincter, surrounds the esophagus at this point.

　　此處有一肌肉環(huán)即賁門括約肌圍繞著食道。

　　The Study of Cardiac Reserve Monitoring System Based on Telephone Network

　　基于電話網(wǎng)絡(luò)的心臟儲(chǔ)備監(jiān)測(cè)儀的研究

　　Design and application of new indicators of cardiac reserve evaluation system based on heart sound

　　基于心音的心臟儲(chǔ)備新指標(biāo)評(píng)價(jià)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)