echo pulse中文什么意思

例句与用法

1. Chemical - shift magnetic resonance ( mr ) imaging is gradually accepted as a useful technique to distinguish benign adrenal lesions from malignant counterparts based on in - phase and out - of - phase gradient - echo pulse sequences
   摘要化学相差磁振造影中，顺相及逆相脉冲序最之肿瘤讯号强度的变化，应用在临床上分辨肾上腺良性或恶性腺瘤是有用且逐渐被接受的图象诊断工具。