tip of the spike

There are two difficulties in the spike detection: spike signals are frequently superimposed on local field potential ( LFP) that reflect the activity of populations of cells near the electrode tip, moreover, the recorded extracellular signal represent a time derivative of the intracellular signal.

从记录的信号中检测锋电位（spike）将遇到两个困难：由周期性振荡的局部场电位引起的基线漂移和由溶液-电极-细胞系统的微分效应导致的锋电位波形变化。

The tip of the spike mutates continually, which means that flu vaccines must be redefined every year.

这种刺突的尖端不断变异，这意味着流感疫苗必须每年重新修改。

A spike or sharp point, as on the tip of a spear.

尖端,矛头,枪刺:尖状物或锐利的尖端, 如矛的顶端.