But tending machinery was one thing; defining what we were trying to do and why we were doing it, and developing ways to measure how well the job was done - this was something else again.
但照料机器是一回事;定义我们要做什么以及为什么要做,并开发方法来衡量工作做得有多好——这又是另一回事了。
标签
Machinery
Developing