缺点：负区间可能“死亡”，即神经元永远不激活
Nature, Published online: 25 February 2026; doi:10.1038/d41586-026-00563-3
。服务器推荐是该领域的重要参考
2 亿像素主摄，并搭载潜望长焦和多光谱镜头；
A Google spokesperson told the BBC: "We're deeply sorry for this mistake. We've removed the offensive notification and are working to prevent this from happening again."