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词汇 SA node
释义 SA node短语¹⁴⁴⁹⁷²⁺²
基本英英例句
窦房结

Noun:
a specialized bit of heart tissue that controls the heartbeatThis process continues over and over as the atria refill with blood and other electrical signals come from theSA node.随着心房的再次充血和窦房结电信号的再次产生,这个过程会一直重复下去。
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