大家都搜：
n.亚微秒
1、Submicrosecond VHF Radiation Character on Broadband Wrap in Lightning───闪电甚高频宽频包络亚微秒辐射特征
2、PTP can be applied in a packet network easily and flexibly with submicrosecond-level synchronization accuracy, and will become an effective alternative to GPS.───PTP技术可方便灵活地应用于分组网络中，同步精度可达亚微秒级，将成为GPS的有效替代。