The comparison shows that the improved gray scale contrast function has simpler time computational complexity and higher focusing sensitivity.
实验对比表明，这种改进的灰度对比度函数，计算时间复杂度较简单，对焦灵敏度高。
Objective To evaluate the diagnostic value of gray scale contrast-enhanced ultrasonography (CEUS) in the diagnosis of active hemorrhage of the kidney.
目的探讨灰阶超声造影在诊断肾外伤活动性出血中的应用价值。
Objective: to discuss the clinical value of real-time gray scale contrast enhanced ultrasound in diagnosis and differential diagnosis of small hepatocellular carcinoma (SHCC).
目的：探讨实时灰阶超声造影在小肝癌诊断与鉴别诊断中的临床应用价值。
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