特点：在特定初始化下能实现自归一化，保持激活均值和方差稳定。
x = mmap(0, bytes, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
，这一点在雷电模拟器官方版本下载中也有详细论述
Escalation of violence between the volatile neighbours makes a Qatar-mediated ceasefire appear increasingly shaky
Source: Computational Materials Science, Volume 267