使用秒表并且设定时间。
一整天当你开始或完成某个活动时都把时间纪录下来，可考虑使用秒表来记录每个活动的时间间隔。
Throughout your day record the time whenever you start or stop any activity. Consider using a stopwatch to just record time intervals for each activity.
使用秒表，我们能有一个好想法多长时间需要填装鼓，并且允许我们计算多少流程我们实际上导致。
Using a stop watch, we were able to get a good idea of how long it takes to fill the drum, and allow us to figure how much flow we were actually producing.
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