水或其他液体从正常流向的反方向流过一个过滤器，将其冲洗干净；
The passing of water or other liquid through a filter in the reversedirection to normal flow in order to flush it clean;
医生扩张斯滕特支架以支撑开通道，如此血液就可以正常地流向心脏。
Doctors expand the stent to hold the passage open so blood can flow normally to the heart.
医生扩张斯滕特支架以支撑开通道，如此血液就可以正常地流向心脏。
Doctors expand the stent to hold the passage open so blood can flow normally to the heart.
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