translation.en: And those can all be made more efficient, and the motors that turn them can have their system efficiency roughly doubled by integrating 35 improvements, paying back in about a year.
translation.zh: 它们都可以变得更有效率 通过整合35个改造项目 就可以使它们的驱动马达，系统效率提高两倍 而且投资回收期仅为一年