usage bit in a page table word

例句：

1. 1. The software is designed to improve the efficiency of our company's operations.
   该软件旨在提高我们公司运营的效率。
2. 2. The new machine has a higher usage rate than its predecessor.
   这款新机器的利用率比前一代高。
3. 3. The government is considering increasing the usage of renewable energy sources.
   政府正在考虑增加可再生能源的使用。