同根派生 SA node相關詞英漢例句Activation of the heart normally begins in the sinoatrial node.在正常情況下，心臟的活動始于竇房結。This process continues over and over as the atria refill with blood and other electrical signals come from the SA node.隨著心房的再次充血和竇房結電信號的再次產生，這個過程會一直重復下去。SA node更多例句