The rest 2 strong echo and 3 mixed echo hemangiomas, displayed the characters of early echoenhancement 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。
2
It possesses of the advantages of high Echo Return Loss Enhancement and good adaptability to circuitry condition experimentally.
实验表明，该回波抵消器具有回波抑制能力强、线路环境适应性好等特点。
3
The capability of time reversal processing for echo-to-reverberation enhancement is studied using computer simulation under the condition that target is in the middle of the shallow water guide.