| 单词 | semilunar valve |
| 释义 | semilunar valve UK [ˌsem.i.lu:.nə'vælv] US [-nɚ'-] noun countable specialized ■one of the valves (= structures that open and close) which stop blood from returning into the ventricles (= lower spaces) of the heart from the aorta (= main artery or tube carrying blood from the heart) or the pulmonary artery 半月瓣（瓣结构之一，瓣可打开和关闭，阻止血液从主动脉或肺动脉流回心脏的心室） |
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