index of production capacity

例句：

1. 1. The indexof production capacity has been rising steadily forthe past few months.
   过去几个月里，生产能力指数一直在稳步上升。
2. 2. Thecompany's index ofproduction capacity is expected to increaseby 5% this year.
   该公司的生产能力指数预计今年将增加5%。
3. 3.The index of production capacity is a keyindicator of economic growth.
   生产能力指数是经济增长的关键指标。