常見(jiàn)例句雙語(yǔ)例句Purpose: This study is to evaluate microbubble based ultrasonic contrast agent and harmonic imaging on liver tumor.目的：探討微氣泡型聲學(xué)造影劑及二次諧波成像在肝癌中的應(yīng)用特點(diǎn)。Meanwhile, the ultrasonic radiation force method is used to get the higher adhering efficiency for the targeted micro-bubble contrast agent, which will improve the imaging quality.同時(shí)采用超聲輻射力法以增加靶向性微泡造影劑在血管壁上的黏附效率，改善成像的性能。權(quán)威例句Schering, a German pharmaceuticals company, is hoping to get approval for a contrast agent whose bubbles, under a correctly tuned ultrasonic beam, will oscillate and eventually rupture.ECONOMIST: The ne plus ultra of medicine 返回 ultrasonic contrast agent