目的探讨鼾症对老年退行性心脏瓣膜病（DCVD）的影响和对心脏瓣膜结构和功能损害的特征。
Objective To explore the effects of rhonchus on senile degenerated cardiac valvular disease (DCVD)and impairment features of valvular structure and function .
患此病的乳猪中所见的第一批症状是喷嚏和鼻鼾。
The first signs noted in baby pigs affected with this condition are sneering and sniffing.
患此病的乳猪中所见的第一批症状是喷嚏和鼻鼾。
The first signs noted in baby pigs affected with this condition are sneering and sniffing.
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