It is an efficiency measure. And probably the easiest way to show you that, is to show you this graph.

这是一个衡量效率的标准。也许最容易说清楚的办法就是这张图表。

It used to be notable mostly for a strong factory culture, operational efficiencies and returns measured in relation to its physical assets.

它过去主要以强大的工厂文化、运营效率和与其实物资产相关的回报而著称。

So when we're seeing plans for economic stimulus in green jobs and energy efficiency measures in homes post-COVID, they're really good ideas.

因此，当我们看到 COVID 后的绿色工作经济刺激计划和家庭能源效率措施时，它们确实是个好主意。