肺实质呈致密斑点状强回声。
先天性致密白内障或外伤性角膜白斑严重者多呈低视力状态。
Most of the congenital compact cataract and traumatic corneal scar patients had low vision.
两种方法制备的银氧化铜材料随着氧化铜含量的升高，材料的致密度、导电性均呈下降趋势。
With the increase of copper oxide content in silver matrix, the density and the electric conductivity of AgCuO materials tended to decrease.
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