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.
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.
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。
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