The solution the ancients devised was to link two tanks together, the upper tank being used to maintain a constant water level in the lower one. This meant that water could be kept flowing into the scoops at a constant rate.
古人想到的辦法，是以兩個水箱相連，第二個水箱保持水位恆定，這樣注入受水壺的水流量和流速就可以穩定不變了。