utility frequency of Chinese character

例句：

1. 1. The new design has greatly improved the utility of the product.
   新设计大大提高了产品的实用性。
2. 2. The company's new policy is designed to increase employee productivity and utility.
   公司新的政策旨在提高员工的生产力和实用性。
3. 3. The utility of this tool is well-documented in its user manual.
   这个工具的实用性在其用户手册中有详细说明。