in-use performance

• 使用效率

in-use performance的用法和样例：

例句

1. Are you a Jekyll or a Hyde when it comes to efficient use of resources?
   面对资源使用效率时，你是杰柯还是海德呢？
2. But efficient use of water, cautions Pasquale Steduto of the United Nations' Food and Agriculture Organisation, is just one step to better agricultural yields.
   农业学家们开始设计工具，帮助监测水的使用效率。