基本解釋反散射同根派生 backscatte相關(guān)詞英漢例句Cyclic variation of intergrated backscatte 背向散射周期性變異Keywords Myocardial infarction;Percutaneous coronary intervention;Echocardiography;Cyclic variation of intergrated backscatte;Viable myocardium; 心肌梗死;經(jīng)皮冠狀動(dòng)脈介入治療;超聲心動(dòng)描記術(shù);背向散射周期性變異;存活心肌;backscatte更多例句