actual upper bound 实际上限; 实在上界..
基于20个网页-相关网页
actual upper bound 实际上限; 实在上界...
基于1个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
My best guess would be that their calculation gives us an upper bound and the actual effect will be above zero but lower than their number.
FORBES: Links 11 Sept: Apple's iPhone 5 Could Add Half A Percent to US GDP
应用推荐
模块上移
模块下移
不移动