syn：abbr.synchronizing 同步；synchronization 同步；
例：
A Brief Analysis of SYN FLOOD Attack Principle and Defensive Measures.
浅析SYN Flood攻击原理及其防御。
相关介绍
Analysis and realization of anti-DDoS attack algorithm based on the SYN cookie mechanism.
基于SYN cookie下防分布式拒绝服务攻击算法的分析与实现。
Source Code Analysis on SYN Flood Attack.
SYN Flood攻击源代码分析。
Immunohistochemical study demonstrated strong positive for Syn and NSE.
免疫组织化学染色Syn、NSE阳性反应。
Lysosome also plays a key role in the process of α-syn degradation.
在清除α-syn的积聚和降解过程中，溶酶体也发挥了重要作用。
