体格检查时发现的收缩中期期卡嗒音为其特征表现。

The characteristic finding on physical exam is a mid-systolic click.

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声波就和光波一样，是以频率、波长和传播速度为其特征。

Like light waves, acoustic (sound) waves are characterized by a frequency, wavelength and propagation speed.

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蜂窝常位于胸膜下，有清楚的壁为其特征，它是一种可确定为肺纤维化的CT征象。

Honeycombing is usually subpleural and is characterized by well-defined walls. It is a ct feature of established pulmonary fibrosis.

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Of course, with cities we typically find a whole association of cultural characteristics, which we deem civilization.

当然,我们总能从城市中找到一系列,独具代表性的文化特征,我们将其界定义为文明

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