线显示右侧气胸，可见心影左移。

This radiograph demonstrates a right pneumothorax. Note the displacement of the heart to the left.

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心影、左心房大小与二尖瓣入口狭窄程度没有关系。

There was no relation-shipe between the size of cardiac shadow, left atrial and the narrow degree of mitral valve entrance.

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我们在正位片上可见一个心影左侧后方一隐约的不透明区。

There is a subtle opacity behind the left heart on the frontal film.

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