Objective : Sinus node dysfunction ( SND ) is one of the most frequently encountered arrhythmia in clinical practice .

窦房结功能障碍（sinusnodedysfunction，SND）是临床上常见的缓慢性心律失常。

Research on Talent Solution in Industrial Transformation of SND

苏州高新区产业转型中的人才问题研究

However , with 20mg / L of NH4 + - N , aerobic granulation and nitrogen removal by SND realized .

在进水NH_4~+-N浓度为20mg/L时，好氧颗粒污泥可以形成，并实现了同步硝化反硝化脱氮。

Analysis of Development of International Investment Environment in SND

苏州新区国际投资环境发展分析

Conclusion The diagnostic accordance rate of OPCA and SND can be elevated with correlation between clinical manifestations and brain MRI .

结论临床表现与MRI结合可提高MSA中OPCA、SND的诊断率，在SDS病人MRI改变不明显。