名词
中文翻译：扩张
同义词：
['expansion', 'dilation', 'expansion']
例句：
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1.The heart's rate increased during the dilatation of the coronary artery.
冠状动脉扩张时，心率增加。
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2.During the dilatation of the uterus, the fetus grows larger.
子宫扩张期间，胎儿生长更大。
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3.The dilatation of the blood vessels can lead to a condition called hypertension.
血管扩张可能导致高血压症。