名词
中文翻译：喷射期
同义词：
['expulsion period', 'ejection period']
例句：
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1.During the preejection period, the heart pumps blood to the brain and other vital organs.
在喷射期，心脏将血液泵送到大脑和其他重要器官。
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2. The preejection period is crucial for maintaining a healthy cardiovascular system.
喷射期对于保持健康的心血管系统至关重要。
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3.The study found that the preejection period could be reduced by using certain medications.
研究发现，使用某些药物可以缩短喷射期。