几秒钟的警报也能够挽救建筑地盘上的生命，例如让工人抓住钢梁或者把起重机移到较安全的位置。
A few seconds' warning could also save lives on construction sites, allowing, for example, workers to grip girders or move cranes to safer positions.
几秒钟的延迟通常会让客户认为“网站关闭了”并转向他处或者提出投诉。
Delays of more than a few seconds typically have the person thinking "the website is down" and going elsewhere or filing complaints.
全息图会在几秒钟或几分钟之后逐渐地自然消失，或者通过记录一幅新的3d影像并将其储存在屏幕上也能擦除之前的图像。
The hologram fades away naturally after a couple of seconds or minutes, or it can be erased by recording a new 3d image and storing it on the screen.
应用推荐