homogeneous echo pattern 均匀性回声表现
homogeneous internal echo pattern 均匀性内回声图
homogeneous solid-type echo pattern 均匀实质型回声表现
The rest 2 strong echo and 3 mixed echo hemangiomas, displayed the characters of early echo enhancement and early disappearance, and the homogeneous enhancement were seen in hemangioma.
另2例强回声型和3例混合回声型血管瘤表现“早显影、早消退”特点，瘤体呈均匀增强回声团块。
The range and depth dependence of the long-range reverberation and echo-reverberation ratio were calculated for the cases of negative gradient and homogeneous layers.
用该法在浅海负梯度和均匀层情况下，计算了远程混响和回波、混响比的距离、深度结构。
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