Since 1950, a, B supersonic has applied in the ophthalmology department clinical, and has progresses greatly, the image resolution enhances unceasingly.
自1950年以来，A、B型超声已应用于眼科临床，并有较大进展，图像分辨率不断提高。
Since 1950, a, B supersonic has applied in the ophthalmology department clinical, and has progresses greatly, the image resolution enhances unceasingly.
自1950年以来，A、B型超声已应用于眼科临床，并有较大进展，图像分辨率不断提高。
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