血液可沿主动脉向上或向下剥离动脉。

The blood can dissect up or down the aorta.

youdao

血液向下剥离，可封闭冠状动脉。

Blood can dissect down to the coronaries and shut them off.

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血液向下剥离，可封闭冠状动脉。

Blood can dissect down to the coronaries and shut them off.

youdao