page replacement time

例句：

1. 1.The page replacement time is critical for the website's performance.
   页面替换时间对于网站性能至关重要。
2. 2. During the page replacement time, the website will be down for maintenance.
   在页面替换时间期间，网站将进行维护。
3. 3.The page replacement time has been reduced by 50% to improve user experience.
   页面替换时间已减少50%，以提升用户体验。